1). Style clip-on stable to wear. 2). Support A2DP,AVRCP,bluetooth headset,handfree profile 3) .Redial the last call ,Reject Features: 1). Style clip-on stable to wear. 2). Support A2DP,AVRCP,bluetooth headset,handfree profile 3) .Redial the last call ,Reject call.Volume adjustable. 4). Faster connecting,clear sound,anti-interference. 5). Listen to MP3 music from cellphone. 6). Listen to stereo ...