CNET gives the Plantronics 855 Bluetooth headset a very good score in their recent review. The Plantronics 855 functions as both a regular mono headset and as a stereo headset by attaching an earbud cable. The reviewer liked the stereo option because of its added functionality, though the small controls and sliding microphone boom were a bit of a concern. Overall, the Plantronics 855 received a 8 out of 10 in this review.