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.