The folks at iFixit continued their investigation of the latest round of iPods with a teardown of the fourth-generation iPod touch. They went deeper than the FCC teardown, and confirmed that the Wi-Fi antenna has been moved to the front, eliminating the need for the black plastic window on that earlier models had. It also shows that Apple is using Toshiba flash memory for the main storage on the iPod; other Apple devices usually use Samsung.

The A4 processor model number is the same one as in the iPad and confirms that it’s using 256MB of RAM. The iPhone 4 has a different label to indicate that it has 512MB. The headphone jack is removable for the first time, and there’s a gap around the battery that simplifies removal.

Klipsch has introduced three new iPhone-compatible headphones in the Image One, Image S5i Rugged and Image S3. The Klipsch Image One is the company’s first on-ear headphones and features a three-button remote specially made for the iPhone, iPod or iPad.

The Klipsch Image S5i Rugged headphones come with a three button remote that can survive some moisture, but isn’t fully waterproof. Lastly, the Klipsch Image S3 headphones can be used with any device like an iPod or an MP3 player since it features a 3.5mm audio jack.

Panasonic has launched its new HJC120 and HSC200 headphones. Both are certified for Apple’s iPod and iPhone and both models offer a built-in microphone and remote. They can also access the VoiceOver function of the iPod shuffle, which is nice.

The remote control is water resistant for extra protection. The HJC120 is a canal type of headphone with an ergonomic design and a 90mm OctaRib speaker, while the HSC200 has a water resistant speaker housing with 12.4mm speakers for more dynamic sound.

Sensgard has rolled out its ZEM headphones. They come with a simple amplifier that will reproduce purer sound and cancel background noise using a proprietary technique from acoustic researcher Dr. Jozef Zwislocki. The noise cancellation doesn’t require any power, instead using a physics-based sound filter which reduces noise in low and high frequency ranges.

Since there is no electronic gear involved with that, the cost and weight of the headphones are reduced. A few small, electro-magnetic receivers work as electro-mechanical amplifiers, delivering a frequency response between 20Hz and 20,000Hz and a sensitivity of 110.5dB at 1,500Hz.

I don’t get the whole Paul Frank thing myself, but apparently many of you like to buy things with a monkey on them. Paul Frank has dabbled in the iPod/iPhone case market and even headphones, but now there is an iPod Dock.

It’s in the shape of Julius of course and is called the Julius Dance Machine. In between the monkey’s hands is the iPod dock in a cradle and according the the specs it will work with all generations of iPod’s. Not sure about iPhones. He will give you about 6 hours on single charge.

The Jaybird Sportsband has received a paint job and a bit of a redesign and are now being called the Jaybird Sportsband SB2. These are available in 9 different colors, from pink, red, blue, and more. Jaybird is also selling two adapters.

The iSport Bluetooth Adapter enables apt-x CD quality music on your iPod, iPhone, or iPad. While the uSport Bluetooth Adapter will allow you to use your Sportsband with any device that has a headphone jack, allowing bluetooth to work on any non-Bluetooth device.

Monster Cable has announced the upcoming Clarity HD Modular In-Ear Headphones, which look good. These are available in a black/red version or a chrome/red version. Both are made with a solid-metal construction and the headphones are apparently ideal for listening to high quality/uncompressed content from your iPod, iPhone or iPad.

They come packaged with 10 pairs of Monster’s SuperTip eartips in the composite foam version, and SuperHooks to make the headphones more secure for joggers. The new Monster Clarity HD In-Ear Headphones also sport ControlTalk for making phone calls.

It’s been some time since we’ve used 8-Tracks. Here’s something that can hopefully make them cool again. This modder has made a Beach Boys deck connect to his iPod nano, complete with a headphone socket and USB port on the front for portability and charging.

When you plug it in, the 8-track transfers iPod signals into the source for plug-and-play awesomeness. So now you have an 8-track that holds 500 songs. Your daddy’s eight track didn’t do that.

I don’t like taking my gadgets near water or to places where dust is an issue. I don’t want to kill my gear with an accidental splash or getting dust into the works. Grace Digital Audio has a new speaker for the iPhone, iPod and any other device with a 3.5mm headphone port that will protect your device while you listen.

The new speaker is called the Eco Extreme and it has a 3-inch full range driver in the front and attaches to a bag with a 2-inch carabiner. The speaker is rubberized to protect it from drops and is water resistant to IPX7 standards.

Portable rocking with your guitar just got easier. IK Multimedia has unveiled the AmpliTube iRig: an easy-to-use instrument interface adapter and guitar/bass tone mobile software. Using the AmpliTube iRig, you can plug your guitar into your iPhone, iPod Touch, or iPad and jam anywhere you want.

Just plug the iRig interface into your device, and then plug your instrument into the input jack, plug in your headphones, amp or powered speakers, and download the free AmpliTube app. You’re good to go. Rock out.

Don’t come running to me when squirrels start stealing your speaker. That’s exactly what will happen now that Pyramid Distribution has rolled out the Motz Wooden acorn Speaker for South Korea. Made of natural cut apricots, this hand-made speaker is great for your iPod or other MP3 players and it also has an FM radio.

There’s also a USB port and a headphone jack and the rechargeable Li-Polymer battery provides up to 5 hours of operation time (10 hours with earphones).

I have lots of notebooks and netbooks that come through my hands and I have tested more than my share of MP3 players and iPods too. One thing that many of the devices have in common is that they lack bass.

If you want more bass from your iPod or MP3 player the zo personal subwoofer promises the kind of bass you expect form a 12-inch sub from a device the size of an iPod nano. The zo has a gauge on the front to show the intensity level it is set at.

You probably haven’t used a cassette tape in ages, but chances are you are nostalgic about them. Well, you can always buy the Funkyfonic Cassette MP3 Speaker to bring back some memories.

It’s an external speaker that you can plug into any standard 3.5mm headphone jack, and it’s powered by two AA batteries. The retro speakers are just $22. Why not go for it and put a giant cassette tape head on your iPod?

Monster teamed up with rapper Dr. Dre last year to produce a line of headphones called Beats by Dr. Dre. The headphones are offered in several styles and now include versions designed in conjunction with other artists like Lady Gaga.

Monster announced that a new version of the Solo HD headphones is available called the Beats Solo HD PRODUCT(RED) that will help raise money for the Global Fund. The Global fund helps pay for Aids research and treatment around the world.

If you need a headphone amp, Audio Technica has a special one just for you. The AT-HA35i amp includes a D/A converter that supports 192 kHz/24bit audio, along with a max output of 440mWx2, 20-20kHz frequency response and support for 32kHz, 44.1kHz, 48kHz sampling.

But what makes this one unique is that it has a built-in iPod dock. Pretty cool no? It even packs in RCA, S-Video, and digital audio outputs in back to connect it to your other devices. Obviously it will cost you. Expect to pay about $560 when it arrives in Japan next month.