... volume + / -, play / pause, previous/next song l Compatible with most Bluetooth enabled devices, for example mobile phone, PDA, laptops, headset ... AVRCP Bluetooth profiles l Comfortable and adjustable headband with overhead designl Low Battery ... and background noise reduction Bluetooth Profiles Supported: Headset, hands free, A2DP and AVRCP Frequency ... clear sound quality Stereo Bluetooth Headset (B-828)