So Kevin Geter over at ChipChick got one of these headsets for review and put it through its paces. He loved it, the box apparently included the actual USB receiver, the stereo headphones, a lanyard, several earpieces for the headphones, a line out cable, a Quick Start Guide, and the AC charger.
Your choices for positioning the Bluetooth receiver were a) use the attached [but removable] belt clip or, b) use the included lanyard and hang it around your neck. Pairing the receiver was apparently easy and the headphones offered up superb sound.
The receiver includes several music functions, and somewhere in the set there is a microphone for taking/making calls. Charging only took about 2 hours, and it lasted playing music for 9, making calls for 11, and standby for about 200 hours.
I like the way it looks, and am sure it has lots of uses, but the Bluetooth receiver and headphones not being integrated into each other makes using it while the device is in your pocket pointless. With the line out cable though, you could use it in your office, house, or even vehicle (if yours has an auxiliary input). The headphones would be useful around the office or house, wherever you would normally use them, but not get more than 33 feet away. Like I said though, using this while your device is just in your pocket is pointless.
Plantronics Pulsar 260 Stereo Bluetooth Headset Review [via chipchick]