years ago but still haven't broken into the mainstream thanks in no small part to the preponderance of low-cost (and low-quality) Bluetooth headphones. That could change with the visibility provided by a new partnership with Mercedes to replace line-of-site infrared technology the company had been using. The deal will equip 2010 Mercedes-Benz E-Class and S-Class models with Kleer's proprietary, low-power, CD-quality digital wireless audio emitted from a pair of video screens on the back of the seats. Occupants wearing the Mercedes-provided Kleer headphones or any compatible pair can then select which audio stream their headphones receive without interfering with Bluetooth or WiFi connected devices. Win, win.