Charging USB Devices With AA Batteries

In this article, we will share with you some devices that use AA batteries to charge USB-powered small electronics. These devices provide a convenient way to stretch the time between wall outlet recharges.

Some are advertised to work with any type of AA battery, giving you lots of options if you are in a pinch as well as permitting you to use resource-saving rechargeables. Here are some we found:

• QuickerTek Apple Juicz Little Black Box
• Neewer Emergency Charger with Flashlight
• Zap RX-4 Recharge-It-All
• Energizer Energi To Go CEL2MUSB
• Voxred Turbo Charge

QuickerTek Apple Juicz Little Black Box

QuickerTek claims its Apple Juicz Little Black Box is the first charger of its kind that will accept any type of AA battery, including alkaline, nickel-metal hydride (NiMH), nickel-zinc (NiZn), and carbon. As long as each of the four batteries installed is of the same type and brand, this unit’s internal circuitry will adjust voltage appropriately. QuickerTek advertises compatibility with most any USB-powered device, including iPod, iPhone, and iPad. The Apple Juicz Little Black Box measures 3.16” L x 2.46” W x 0.76” D and weighs 1.6 ounces without batteries. There is an on/off switch and a single female USB port. Batteries are not included, and the manufacturer recommends NiZn batteries for best performance.

The QuickerTek Apple Juicz Little Black Box sells for around $23 on Amazon.

Neewer Emergency Charger with Flashlight

Neewer Emergency Charger with Flashlight

The Neewer Emergency Charger with Flashlight draws a surprising number of reviews on Amazon; over 40 customers weigh in to give the black-colored model an average of 3½ out of 5 stars, and about 10 people give the white-colored version an average of 4 stars. This charger accepts two AA batteries; though the manufacturer does not specify which types are appropriate, customers seem to have success with both rechargeables and non-rechargeables. On the edge of this unit you’ll find an on/off/flashlight switch, on its face there is an LED charge indicator, and on the end is the female USB port and LED flashlight. Most reviewers like this charger, citing its high value, slim profile, and wide charging compatibility. But this charger also draws negative feedback for running hot and inefficiently. Neewer claims compatibility with just about all USB-powered devices, including iPhones. Batteries are not included.

Amazon sells the Neewer Emergency Charger with Flashlight in black or white, both for around $5.

Zap RX-4 Recharge-It-All

Zap RX-4 Recharge-It-All

The Zap RX-4 Recharge-It-All accepts (and includes) four AA batteries. Eight Amazon reviewers give it an average rating of 4 stars. Customers like the flexibility of this device—it accepts alkaline and rechargeable batteries, includes a USB cable with adapters for different mobile phones, and it can be plugged into a wall outlet to recharge the batteries it holds. It has a four-light LED battery-life indicator and comes with a carrying case. The biggest complaint is about the included rechargeable batteries; customers find they aren’t nearly as good as most rechargeables on the market today. Though the manufacturer claims wide compatibility, some customers report the RX-4 Recharge-It-All will not charge their devices.

Purchase the Zap RX-4 Recharge-It-All for about $18 on Amazon.

Energizer Energi To Go CEL2MUSB

Energizer Energi To Go CEL2MUSB

Energizer’s Energi To Go CEL2MUSB charger operates on two AA batteries. This charger includes two Energizer Ultimate Lithium AAs, but customers say rechargeables also work. Customers also say the Energi To Go CEL2MUSB performs as advertised, working with a wide range of USB-powered devices and remaining reliable long after their purchase. There are some complaints about the battery door being difficult to work with and some reviewers found this charger was not compatible with their phones after they bought it, but overall the feedback is positive. The Energi To Go CEL2MUSB comes with adapter for mini- and micro-USB connections. The company states this charger is not compatible with iPhone or HTC Android.

You’ll find the Energizer Energi To Go CEL2MUSB available for around $17 on Amazon.

Voxred Turbo Charge

Voxred Turbo Charge

The Voxred Turbo Charge comes in a variety of packages, all with different sets of charging cables. We recommend the TBB850 or TBM1050 packages; each comes with a mini-USB adapter and the TBB850 also includes a micro-USB adapter. You can order additional adapters through the manufacturer. The Turbo Charge accepts two AA batteries (rechargeable or non-rechargeable), and two AAs are included. It measures 3” L x 1.5” W x 0.75”D and weighs 2.5 ounces with batteries installed. There is a three-level LED battery-life indicator and an on/off/flashlight switch (the flashlight is two white LEDs on the end). CNET gave the Turbo Charge 4 out of 5 stars in 2007. Customers have been a little less enthusiastic; their chief complaint is that the batteries are depleted well before the advertised two to three full charges for portable electronic devices.

Both the Voxred Turbo Charge TBB850 and TBM1050 are for sale on Amazon for around $18.

Best Waterproof Headphones For 2011

Ever since we saw Michael Phelps with his headphones at the Olympics not only have we asked the question, “What’s on Michael Phelps’ iPod?”, but more importantly, “How can we too enjoy music in and around the water?”.  With science continuing to advance in developing underwater headphones, water lovers can now bring their tunes with them and still get quality sound. Not just for swimmers, waterproof headphones are beneficial for all sports enthusiasts since they are also sweatproof and can be rinsed off after use. By reading reviews across the web (iLounge and CrunchGear are good sources), we’ve come up with a list of the best waterproof headphones for 2011. Though stay tuned, as this technology will be sure to continue making progress.

H2O Audio Surge 2G Waterproof Headphones

H2O Audio Surge 2G Waterproof Sport Headphones

H2o Audio, an innovator in developing underwater accessories, has recently released their improved Surge 2G waterproof headphones that come highly recommended by iLounge. These are the headphones used and endorsed by Olympic swimmer Michael Phelps. They are 100% waterproof for underwater submersion up to 12 feet and can be rinsed after a strenuous workout. Five sets of varying sized rubber tips are provided to find the right fit. According to iLounge, these earbuds form a more complete seal in the ear than other headphones they’ve tested. Also compared to other underwater options, the H2o Audio Surge 2G offers an unparalleled sound with a sound-isolating fit and bass amplified neodymium drivers to provide a balanced quality both above and below the water.

The plug is designed to fit into H2O Audio’s waterproof armbands and cases so is only compatible with the iPhone 3G and all iPod models. For other Mp3s or the original iPhone you’ll need a case with a pass-through port or an adapter.

The H2o Audio Surge 2G waterproof headphones retail for $49.99, but are currently on sale at Amazon for $25.59. Comes with a waterproof carrying case. Also offered is a model with a built-in waterproof microphone for around $50.00 here.

Aquapac Waterproof Headphones

Aquapac Waterproof Headphones

The Aquapac waterproof headphones have received high ratings and at a retail price of $45.00 are economical. They’ve been tested to an underwater depth of 30 feet, but are not advised for use beyond 10 feet due to pressure on the ear. Underwater headphone testers at iLounge gave the Aquapacs a B rating. They were impressed by the sound quality both above and below the water. The silicone tips create a seal in the ear to prevent water from getting in, though the one downside to the Aquapacs are that they only come with one size tips that will fit average sized ears.

The Aquapac waterproof headphones come with a buoy and keychain cord keeper.

You can get them on Amazon for $31.56.

Audio Bone Waterproof Headphones

Audio Bone Waterproof Headphones

The Audio Bone headphones use bone conduction technology which allow the user to wear the headphones on the outside of their ears. Since we hear differently while submerged in water, this technology completely bypasses the ear drum by converting sound waves into vibrations. There are pros and cons to this type of headphone and after reading reviews by those who have tried them, people either love them or hate them. One of the cons is the price.

Bone Conduction Technology

One of the cons is the price. The audio bone headphones retail for $189.00. However, these headphones do transfer well to all activities, such as cycling or even listening at work, since it allows you to still be able to hear other things going on around you. Another con is that bone conduction is a less efficient way for us to hear, therefore your iPod or Mp3 will generally need to be on the highest volume setting which can cause the battery to drain faster. Some users report a muffled sound quality, while others like that they can still hear outside noise. Your personal preference would depend upon the intended use. Also, many people don’t like the feel of earbuds so the Audio Bones are a perfect match for them. You can read a full review at the Gadgeteer and CrunchGear.

The Audio Bone Waterproof Headphones are currently on sale at Amazon for $141.82.

Budget Pick: H2O Audio Flex Underwater Headphones

H2O Audio Flex Underwater Headphones

These Flex headphones are the newest entry from H2O Audio and our budget pick for a waterproof headphone. These would be a good option for someone who needs waterproof headphones from time to time, perhaps for sweaty workouts, occasional laps in the pool, or just lying in the bath. They are submersible up to 3 feet underwater. Amazon reviewers complained about the fit with these headphones, though they do come with 3 bud sizes. As one reviewer pointed out, be sure to wipe out your ear so that it’s dry before inserting the buds. This will help create a stronger seal and they won’t slip out as easily. Also, wear the wires on your back and insert the headphones from behind your neck. The sound is of good quality and is well-balanced. Those who prefer a strong bass won’t get it here, but again, the price is key. For a full review on the H2O Audio Flex click here.

The H2O Audio Flex underwater headphones come in a choice of 5 cool colors and are on sale at Amazon for $19.41.

Waterproof iPods Cases

H20Friendly 100% Waterproof iPod Shuffle Case

If you spend a lot of time in the water, you may want to consider investing in a fully waterproof system. Companies such as H2oFriendly and Swimman will waterproof an iPod shuffle from the inside out so you can take it right into the water without use of a bulky case. User reviews for both of these systems are excellent both for quality and for ease of use. H2OFriendly offers a 1 year waterproof warranty and you can purchase just the 4th generation 2 GB iPod shuffle or a complete system which includes Velcro securing straps that clip onto goggles and underwater headphones, as well as the original iPod shuffle packaging.

The H2OFriendly Swim System sells for $169.95 on Amazon. Or just the silver waterproof iPod goes for $143.95 on Amazon. You can also order straight from the company’s website if you’d like a choice of iPod colors: green, orange, blue, silver, or pink.

Swimman Underwater Music System

Swimman has an excellent reputation among swimmers and they are currently waterproofing 3rd generation iPod shuffles. At $250.00, their system is more than the H2oFriendly, but they do include a waterproof control adapter and their underwater headphone set boasts superior sound quality similar to top-of-the-line non-waterproof headphones. To purchase Swimman order directly from their website. You can also purchase their headphone set separately for $100.00 here.

Best Digital Voice Recorder Review

The best digital voice recorders are chock filled with more features than most users will even need. From students looking to record lectures, to businessmen and women trying to capture a meeting for later reference, digital voice recorders have become more and more useful. Some of the best digital voice recorders even feature MP3 capability, as well as a built-in FM radio. There is even the ability to send files to your email and switch out storage cards. Some of the biggest electronic brands, like Sony, Olympus, and Sanyo all create some of the best digital voice recorders. Here are some the best reviewed digital voice recorders:

The Uncompressed Olympus LS-10

Best Digital Voice Recorder: Olympus LS-10

The Olympus LS-10 Linear PCM Recorder is capable of recording around 12 hours of audio using just two AA batteries. This digital voice recorder features WAV, MP3 and WMA recording and playback, and can hold 2 GB of audio using just its Flash memory. Users can also access its SD/SDHC removable media card slot for even more storage. It is equipped with two speakers for playback, or a headphone port for privacy. The LS-10 is also very lightweight at only 5.3 ounces.

Owners of this device really appreciate the way the LS-10 captures sound, noting that its menu construction is sensible and allows for full accessibility of its feature set, making it one of the best digital voice recorders. Overall, it’s earned a four and a half star rating at Amazon. A couple users noted that the twin microphones are very sensitive to hand movement, and also that playback on the external speakers can be low. In an ambient environment, using headphones may be best for playback with this digital voice recorder.

The Olympus LS-10 Linear PCM Recorder is available at Amazon for $232.

The Red Sony PCM-M10/R Portable

Best Digital Voice Recorder: Sony PCM-M10/R Portable

The Sony PCM-M10/R Portable Linear PCM Recorder has 4 GB of flash memory for storing audio. It also has a built-in speaker, as well as cross-memory recording capability, and pitch control. Users can access the USB port to upload and download recordings to this device, one of the best digital voice recorders. Audio can be captured in WAV or MP3 formats, and there is also a MicroSD/Memory Stick Micro (M2) slot for expanding storage options.

Many users really like this device, naming it one of the best digital voice recorder, noting that it’s mics are excellent and the audio quality is quite near perfect. However, a couple owners noted that when recording a session, you’re not able to name it through the recorder’s menu. Also, the included disc with Soundforge is PC only, leaving MAC users out to dry.

The Sony PCM-M10/R Portable is available at Amazon for $245.

The MP3-Playable CC Witness 2GB

Best Digital Voice Recorder: CC Witness 2GB

The CC Witness 2GB Digital Recorder doubles has a MP3 player and also features an AM/FM radio. It has 2 GB of flash memory, and features a SD card slot for another 2 GB worth of storage. There is a USB port for uploading content, as well as an alarm clock for those heavy sleepers. This digital voice recorder also has a built-in calendar and comes with earbud headphones.

Amazon owners rated this one of the best digital voice recorders with four and a half stars. They appreciate the ability to record local radio shows as one of the best digital voice recorders and also love the sound quality. Some owners complain about the price, but its pretty standard considering the extra features. One user notes that the brightness of the menu isn’t adjustable. Another mentions that the reception of the radio can be varying depending on the location, but that’s the case for any radio.

The CC Witness 2GB is available at Amazon for $176.

The Large Capacity Sanyo ICR-FP700D

Best Digital Voice Recorder: Sanyo ICR-FP700D

The Sanyo ICR-FP700D Digital Stereo MP3 has a lot of room for storage because it excludes all the extras and focuses on just storing audio. With an optional 8 GB of space, as well as a 29 hour battery life, this device was made for corporate or student use. There is a 1 GB SD card included with the ICR-FP700D, and it’s able to record in stereo MP3 format. There is also a voice-activated feature for recording.

Sanyo’s device is one of the best digital voice recorders because it’s lauded by consumers for its recordings, but they note that raising the bit rate to make it higher quality will lessen storage space overall. One user notes that there can be some hiss during playback at times, and another mentions that the SD card slot door is a bit susceptible to being broken off.

The Sanyo ICR-FP700D Digital Stereo MP3 is available at Amazon for $108.

Earbuds just aren’t for everyone. They can be uncomfortable and many simply don’t offer the same sound quality and noise-cancelling benefits traditional, of over-the-ear headphones. While the concept of wireless headphones has been around for years, they have long taken a backseat to earbuds, mainly due to portability issues and an overall lack of quality sound reproduction.

In the past, home versions of wireless headphone models were bulky and simply not suitable for portable use.  But recently, wireless headphones have begun to approach the sound-quality standards set forth by the competition and the design improvements have made them more portable than ever. Check out the top picks for wireless headphones for the iPod.

Here is our round-up of the best wireless headphones for iPods:

The Sony Wireless Bluetooth Transmitter and Headphones for iPod

Best Wireless Headphones for iPod: The Sony Wireless-Bluetooth Transmitter and Headphones for iPod

The Sony Wireless Bluetooth Transmitter and Headphones for iPod offers one of the best and most economical ways to go wireless. The foldable Bluetooth headset makes portability a snap. One of the best features of these headphones is the ability to switch from your music experience to any one of several portable devices with Bluetooth capability with the touch of your finger. 13 out of 22 users gave this product a 5 star rating for battery life, comfort, ease of use and sound quality. Overall, the Sony wireless Bluetooth transmitter and headphones for iPod is a great alternative for users who shy away from earbuds.
The Sony Wireless Bluetooth Transmitter and Headphones for iPod is available at Amazon for $63.99.

The jWin Stereo Bluetooth Backphone For iPods

The jWin Stereo Bluetooth Backphone with Built in Control Function for iPod Touch, Classic, Nano, and Shuffle is a tiny yet powerful alternative to traditional iPod earbuds.  The Digital Signal Processor allows for maximum noise and echo cancellation, leaving listeners with nothing but pure sound for their listening pleasure. Overall, this device rates highly with Amazon users, receiving 4 out of 5 stars in both portability and battery life.

The jWin headphone is available at Amazon for $73.99.

The Cables Unlimited Wireless Stereo Headphones (SPK-9100)

Best Wireless Headphones for iPod: Cables Unlimited 900 MHz Wireless Stereo Headphones (SPK-9100)

The Cables Unlimited 900 MHz Wireless Stereo Headphones (SPK-9100 )is the most economical choice when it comes to delivering high quality wireless sound from a multitude of iPod devices.  This lightweight, portable device makes exercising to your favorite tunes a breeze and like most other Bluetooth devices, can be used to convert virtually any Bluetooth device to a hands-free, wireless device.  The range of these headphones makes listening to your iPod possible from almost any room in your house.

Amazon users love this device and have given it high marks in all of its categories including 4 out of 5 stars in the ease of use, battery life, portability, and comfort departments.

The Cables Unlimited 900 MHz Wireless Stereo Headphones (SPK-9100) are available at Amazon for $40.19.

The JBL Ref 610 Over the Ear Wireless Headphones

Best Wireless Headphones for iPod JBL Ref 610 Over the Ear Wireless Headphones

Beauty is truly in the ear of the listener when it comes to the JBL Ref 610 Over the Ear Wireless Headphones.  Though the most expensive headphones in the bunch, JBL delivers a powerful punch with these headphones.  JBL has long been a recognized name in the audio speaker industry and these headphones are no exception.

Amazon users agree — 15 out of the 24 consumer reviews gives these headphones 5 stars in sound quality, fit, battery life and ease of use, landing these speakers an overall rating of 4 ½ stars out of 5.

The main drawback to these headphones is the price.  These are easily the most expensive headphones on the list.  The JBL Ref 610 over the Ear Wireless Headphones are available at Amazon for $244.50

Listen To iPod in The Car

If you’re a music lover who spends a lot of time on the road, you don’t want to fumble with an iPod’s controls to enjoy your music. So what’s the solution? An iPod stereo receiver for the car. And there’s no need to break the bank – here are four of the best options available for under $150.

Sony CDX-GT630UI iPod Car Stereo

Sony CDX-GT630UI iPod-Ready Car Stereo Receiver

The Sony CDX-GT630UI has a slight power edge on its competition with its 4 x 52W output, but where it really shines is in its versatility playing different types of music files. An iPod can be connected directly and controlled/charged via the receiver, but the frontal USB slot offers other options too: MP3, WMA, AAC, and ATRAC3 files can all be played from a USB drive. The ZAPPIN feature lets you scroll easily through your iPod’s catalog, and style-conscious listeners have a choice of blue or green illumination. It’s an easy way to connect and listen to your iPod in the car.

You can find the Sony CDX-GT630UI iPod-Ready Car Stereo Receiver for $109.99 at Amazon.

JVC KD-HDR50 iPod Car Stereo

JVC KD-HDR50 iPod-Ready Car Stereo Receiver

The JVC KD-HDR50 is a 4 x 50W HD radio receiver with seven equalizer bands and two pre-amp outputs. Its CD player will accommodate MP3 and WMA files on disc as well as CD audio, and its USB input lets you play tracks from a flash drive too. You can control your iPod through the receiver’s controls, and it also comes with a wireless remote control. An auxiliary input allows use of other music devices.

The JVC KD-HDR50 iPod-Ready Car Stereo Receiver is available from Amazon for $129.64.

Pioneer DEHP4100UB SCD iPod-Ready Car Stereo Receiver

Pioneer DEHP4100UB SCD iPod-Ready Car Stereo Receiver

The Pioneer DEHP4100UB SCD integrates a CD-IU50 iPod cable to let you control your music directly from the receiver. It provides 50W of power to each of the four channels, and three pre-outs allow connections of external amps or speakers. The Pioneer is satellite-radio-ready, and it comes standard with a wireless remote. It’s also compatible with Pioneer’s Bluetooth adapter, so you can use your speakers for hands-free cell phone calls.

You can find the Pioneer DEHP4100UB SCD iPod-Ready Car Stereo Receiver for $128.00 at Amazon.

Kenwood KDC-MP342U iPod-Ready Car Stereo Receiver

Kenwood KDC-MP342U iPod-Ready Car Stereo Receiver

The 4 x 50W Kenwood KDC-MP342U features two options for iPod connections, either the USB slot on the faceplate or the optional iPod Interface cable. The receiver also plays standard CDs as well as discs with MP3, WMA, or AAC tracks. A mini drive can also be attached to the USB slot on the faceplate for playing music files. The Kenwood is HD-radio and satellite-radio ready, and comes with an IR remote control. Plus it’s available with an optional adapter to use Bluetooth-enabled devices.

The Kenwood KDC-MP342U iPod-Ready Car Stereo Receiver is available at Amazon for $101.00.

Best Wireless Earbuds: Sennheiser MM 200 Bluetooth Headset

Wireless earbuds allow you to listen to an iPod or MP3 player without a tangle of cords. They are particularly useful for listening while you are engaged in sports.

There are two types of wireless earbuds: those that transmit wirelessly via an iPod adapter, and those that attach directly to an iPod shuffle. Most of the transmitting wireless earbuds use the Bluetooth protocol, but a few high-end earbuds use a different wireless protocol called Kleer for CD-quality audio. Bluetooth transmits music reasonably well, but if your are looking for high-fidelity sound you should probably choose a Kleer-compatible device.

The iPhone supports Bluetooth headphones, but split-second interruptions can sometimes be heard in playback while an App is loading. iPod audio continues to be almost perfect when running even device-taxing games, but there are occasionally similarly brief interruptions. This will depend on the App.

Here’s our round-up of the best wireless earbuds currently available:

Update:

We’ve found two new wireless headsets that you might want to consider: the Nokia Bluetooth Headset BH-905 and the Jabra BT8010 Bluetooth Headset . These were both given “Excellent” rating by CNet, this month (February 2011). They also gave an “Excellent” rating to the Etymotic Ety8, which is listed below.

Etymotic Research Ety8 Bluetooth Wireless Earbuds

Etymotic Research is a company that produces high-end earphones that compete with the likes of Shure and Ultimate Ears. They make a set of wireless earbuds, the Ety8 Bluetooth Wireless Earphones which are noise-canceling earbuds that are supported by your ear canal. They come with different sizes of ear-tips to accommodate the many different ear sizes.

The set weighs less than half an ounce and one of them contains the battery and the other the circuit, antennae and controls. However, all of these electronic means the earbuds are pretty large and fairly heavy. Despite there being no cables dragging at your ears, the sheer weight of each earphone is enough to pull uncomfortably under normal use. You definitely cannot run with these earbuds.

However, they do offer excellent sound and great noise reduction. So if that is your priority when selecting earbuds, you might want to try these.

The Ety8 Bluetooth Wireless Earphones are available for about $220 from Amazon.

The Sleek Audio SA6 Wireless Headphone Bundle

Sleek Wireless Headphone Bundle

The Sleek SA6 Wireless Headphone makes use of Kleer Corporation’s digital transmission technology. Kleer uses the same 2.4 GHz range as Bluetooth, but it actually allows for the transmission of uncompressed CD-quality sound. It also uses less power than Bluetooth, so the headphones hold their charge longer.

The only other earbuds using Kleer technology, are the Sennheiser (featured below). These Sleek headphones top our list of wireless headphones, offer excellent sound quality and good battery life.

The Sleek SA6 Wireless Headphone is available from Amazon for $275.

Sleek Wireless Earbuds

Sleek Headphones Use Kleer Technology

Sennheiser MX W1 Totally Wireless Earphones

Sennheiser’s MX W1 Totally Wireless Earphones also uses Kleer Corporation’s digital transmission technology.

The entire system consists of the earbuds, a small transmitter that connects to an iPod or MP3 player, and a carrying case with built-in quick charge function that enables up to three full recharges while on the go.

The transmitter is very small — it’s about  half the size of a pack of gum. It comes with a rubber band to strap to an iPod. In a clear space you can move about 40 feet away from the iPod and still get a clear signal. On a full charge the transmitter will last for about 10 hours, while the earbuds will last for about 3 to 5 hours.

The Sennheiser MX W1 Totally Wireless Earphones are available from Amazon for about $300. You can check out the Amazon reviews for this product.

Sennheiser MM 200 Bluetooth Wireless Earbuds

The Sennheiser MM 200 bluetooth headset is a good choice if your budget is under $200 (it currently sells for  $106). The MM 200 earbuds have a lanyard design — you wear the device around your neck. They earbuds themselves are very similar to wired Sennheiser earbuds — the device on the lanyard holds the battery and the bluetooth receiver. So the MM 200 is likely to appeal to those who don’t mind wearing it around their neck.

The battery takes about 3 hours to charge, and its gives you about 9 hours of music, which is quite good when compared to other headsets. The process of pairing the headset with an iPhone using bluetooth was straightforward. The controls allow you to play and pause music, change the volume, and some in-call controls for the phone too.

The earbuds comes with three different sized rubber tips. Once you get the right fit, the quality of music really improves. The overall quality of the sound is very good, as you’d expect from Sennheiser. The only reservation I have is that the earbuds are a bit light on bass.

The Sennheiser MM 200 wireless bluetooth headset is available from Amazon for $106 (currently out of stock).

JBL Ref 610 Headphones For iPhones and iPods

JBL Ref 610 Wireless Headphones For iPhone and iPods

The JBL Reference 610 are bluetooth headphones that are designed to be used with iPhones and iPods. Made by Harman Kardon, they have good sound quality (as good as you can expect from Bluetooth). They are also very comfortable, and the built-in rechargeable battery last at least 10 hours on a charge. The JBL Reference 610 includes built-in controls on the ear cup — you can adjust volume, select tracks, play, pause, plus browse menus when in iPod navigation mode.

These headphones can also be plugged in using a included 3.5mm mini plug (I don’t know of any other bluetooth headphone with this feature).

The JBL Reference 610 headphones are from Amazon for about $140.

Motorola S305 Bluetooth Stereo Headset

The Motorola S305 Bluetooth Stereo Headset is a very functional headset, that sells for $35. This is the best rated Bluetooth Headphone on Amazon (it gets an average rate of 4 or 5 stars from over 100 buyers).

Available on Amazon.

Jaybird JB 200i Earbuds For iPod

Jaybird JB 200i Bluetooth Stereo Earbuds For iPod

The Jaybird JB 200i Bluetooth Earbuds are built for listening while active. They are water and sweat resistant, and they are made to stay secure while in motion. Jaybirds are quite comfortable to wear  – the bulk of the earpieces are contained in the two crescent-moon-shaped units that curve behind the ear when worn.

Jaybirds are also designed to make calls with Bluetooth-equipped mobile phones (they switch from music to calls with the press of a button). They include an iPod adapter, and the process of pairing with the earphones is pretty easy.

The earphones have three buttons on the right earpiece: one that plays and pauses music as well as starts and end calls, and two more that alternate between volume controls (long press) and track shuttle keys (short press). A thin cable, meant to be worn behind the head, connects the right to the left ear piece.

The sounds quality of the earphones is reasonably good, but the bass tends to muffled and under-represented.

Overall, the JayBird JB-200i is good for active types who want a super low-profile set of wireless earphones for their iPod.

The Jaybird JB 200i earbuds are available from Amazon for about $100.

Motorola Motorokr S9 Wireless Earphones

Like the Jaybird earphones, the Motorokr S9 Bluetooth Wireless Earphones are made for sports use. They are water-resistant and can be used with any phone that supports Bluetooth Stereo Profile (A2DP) or Bluetooth Adapter for iPod. The Motorokr S9 comes with a Bluetooth adapter for iPods.

The S9 headset is comfortable to wear. It has a rigid plastic band that sits just behind the back of your neck. The earbud covers are made with soft rubber. The left-hand side of the headset has the Play and Track Skip buttons. The right-hand side features volume controls and a multifunction button for managing voice calls.

The headset isn’t a true in-ear design. This makes it more comfortable to wear, but it also lets more sound in from the outside.

The audio quality is reasonable, but not great,  The battery life is reasonably good (up to approximately 6 hour music listening, 7 hours talk time from a single charge).

One Amazon reviewer had an issue with power button:

The product delivered everything I expected. The only issue I have is the touchy on/off switch. My robe collar will actually shut the headphones off, if I’m not careful. Other than that, it’s a great product.

The Motorokr S9 Bluetooth Wireless Earphones are available from Amazon for around $40.

Best Portable iPod and MP3 Speakers

A few months ago, MetaEfficient profiled an energy efficient home speaker system for the iPod. But what if you want to bring your music with you on the go – and share it outside your headphones? You’ll need a set of portable speakers that are just as mobile as your MP3 player. Following are six of the best portable speaker systems on the market, in a range of sizes and offering a variety of features. All of them feature a self-contained power source, and some offer an iPod dock as well as a standard 3.5mm mini-jack connection.

JBL On Stage Micro

JBL On Stage Micro

The JBL On Stage Micro provides solid sound quality with a tiny footprint. It features an iPod dock in the center as well as a 3.5mm plug for connecting other inputs, plus a clever touch button system and a remote control that make track selection and volume adjustments easy. Aluminum transducers driven by neodymium magnets are paired with digital amplifiers to provide rich sound while extending battery life. Four AAA batteries provide 24 hours of play. The On Stage Micro is compatible with rechargeable NiMH and lithium cells, and it features a low battery indicator LED. Plus, the On Stage Micro speaker system comes in a range of color options to match your iPod: white, black, blue, green, and red.

The JBL On Stage Micro is available at Amazon. Prices start at $72.50, depending on color.

iHome iHM77 Portable Multimedia Speakers

iHome iHM77 Portable Multimedia Speakers

These rubberized mini speakers from iHome each measure just 2” x 2” x 2” when collapsed for transport, then pop open when in use with a clever accordion design. Vacuum bass design enhances low frequency tones, and the iHome speakers magnetically attach to one another to form a super-portable capsule. Power comes from internal lithium-ion batteries that can be recharged using the included USB cord, and a carry case and cord wrap are included with the speakers.

The iHome iHM77 Portable Multimedia Speakers are available in black, silver, and red from Amazon, starting at $46.80.

Harmon/Kardon Go + Play

Harmon/Kardon Go + Play

The Go + Play from Harmon/Kardon may not be the smallest or cheapest option for a portable speaker system, but it delivers serious sound quality thanks to its 30-watt tweeters and 30-watt Atlas woofers. Its 9” x 9.5” x 20” dimensions are substantial, but a stainless steel carry handle and battery power keep it portable. It features the universal iPod dock system that is compatible with most dockable iPods (see note below) plus a 3.5mm jack for other connections. The Go + Play comes with an AC power adapter for indoor use, and a full-featured RF remote with a 20-foot range. And although eight D batteries add bulk to the system, they provide approximately 20 hours of power.

(Note: Harmon/Kardon is planning to release an updated version of the Go + Play speaker system in spring ’09, offering enhanced compatibility with newer iPods and the iPhone.)

You can find the Harmon/Kardon Go + Play at Amazon for $216.90.

Pacific Rim Technologies Cube Travel Speakers

Pacific Rim Technologies Cube Travel Speakers

The Pacific Rim Cube speakers have been around for a while, and they’ve won fans with their minimalist design (and sub- $10 price tag). You shouldn’t expect window-rattling bass from these mini speakers, but the Cube delivers mobile sound and folds into a tidy package for transport – just 2.4” x 2.4” x 4”. The Cube features an iPod stand and a 3.5mm jack for connecting your player, plus an independent volume control. Power is provided by four AAA batteries or the included 6V DC charger. The cable management system is handy when it’s time to pack up the Cube, and the speakers are available in either black or white to match your iPod.

The Pacific Rim Technologies Cube Travel Speakers are available from Amazon for $9.99.

Altec Lansing InMotion iM11BLK

Altec Lansing InMotion iM11BLK

Altec Lansing is no stranger to iPod speakers, and the InMotion iM11BLK is a highly portable speaker system that won’t break the bank. Weighing less than a pound and measuring 8.5” x 1.4” x 4.3” when folded for transport, the InMotion system features an iPod dock/ charger, as well as a standard 3.5mm plug to accommodate other music players. MaxxBass speakers provide solid low tones without the need for a subwoofer. Four AA batteries provide over 18 hours of playback, or the speakers can be powered via the included AC plug.

The Altec Lansing InMotion iM11BLK is available from Amazon for $65.82.

Bose SoundDock Portable

Bose SoundDock Portable

Would you be willing to sacrifice compact size to literally bring your home stereo system with you wherever you go? If so, check out the Bose SoundDock Portable. This mobile variation of their popular SoundDock system features a carry handle, a rechargeable lithium-ion battery, and a retractable iPod connection/charging dock (in addition to a 3.5mm plug for other devices). The SoundDock is over 12” wide and weighs over five pounds, so it’s not as compact or portable as some of its competitors, and it doesn’t come cheap – but it offers legendary Bose sound quality and an iPod-specific design. Battery life is roughly three hours at maximum volume (longer at lower levels); an AC adapter is included for battery charging and using the SoundDock at home, and a remote control gives added convenience.

You can find the Bose SoundDock Portable in black or white for $399 at Amazon, as well as a SoundDock travel bag for $40.19.

Yes — manufacturers — make more devices like this one. The Monolith MP3 player is fused into a solid 1.5mm aluminium casing — not stuck together with glue or screws. It’s a unique manufacturing process pioneered by the manufacturer, Estar Laboratories. Testers have run the player over with a car, shot the player with a BB gun, thrown the player against a brick wall — all without breaking the unit. It has 512 MB memory and an internal lithium-ion rechargeable battery (featuring over 19 hours of playback time).

It can be recharged through a USB port (or purchase the optional AC Power Adapter) and the player will be fully primed for action in 3 hours time. The Monolith Premium’s audio heart is a 24bit Wolfson sigma delta DAC, driving an impressive 28mW of sound output per channel (combined output of a market leading 56mW).

Available from Advanced MP3 Players for about $155.

The Boomtune Mini is a portable speaker system that incorporates a tripod design and has a 2 x 1W output. It runs on one AAA battery.

Boomtune Mini can be used with almost any MP3 player. It appears to only be available in Japan. More information at Yanko Design – thanks for the tip.

This CD player for your car also features a USB port and a SD Memory Slot for MP3 playback. Made by H&B, it seems to be only available in the UK for about £78. A CD player by Pyle, available in the US, seems to do similar things, since it has a “Universal USB 2.0 Card Reader”.

Via Red Ferret