This thin stereo Bluetooth headset from Sony Ericsson called the MW600, passed through the FCC today.  The device has a universal 3.5mm jack – a feature we love because it allows you to use your favorite pair of earphones.  The device also has a mini USB charger, so you’re not forced to lug around a proprietary AC adapter.

Interesting, the MW600 has an integrated AM/FM tuner, as well.  This is actually a pretty valuable feature when you’re working out, since many gyms broadcast the audio from public TVs over FM channels.

The MW600 measures 17.5mm x 15mm x 62mm, and weighs only 13g.  The battery supports up to 8.5 hours of music streaming, 11 hours of talk time, or 500 hours of standby.  Music and call data on the MW600 are displayed on a small, single color OLED screen.

Overall, we like the sleek, compact design of the MW600, as well as Sony Ericsson’s intelligent design.  We don’t have pricing or a release date, but the MW600 should be coming soon.

Stereo Bluetooth has been big ever since the iPhone 3.0 update enabled A2DP.  Sony Ericsson has been making stereo Bluetooth devices for a while, and it seems like their slick devices will benefit from a new market of iPhone users.

The Sony Ericsson MH110 is a thin device that is tiny enough to be clipped to your shirt pocket.  The manual claims this device will give you 8 hours of battery life, but of course real work usage may prove different.

The best feature on the MH110 in my opinion is what appears to be a 3.5mm jack (top right).  This will enable you to use any standard headset, as opposed to other Sony Ericsson models that had Sony’s pair of buds hardwired into the device.  A universal jack also allows you to replace headphones when they break – a key deficiency of other models.