Bluetooth Stereo Headset, BH-0101401 Enjoy the streaming stereo music from a mobile, mp3 player, PC or PDA. Remote control song easily. (1) CSR chip, Bluetooth v1.2. (2) Bluetooth Class 2, 10-20 meters distance. (3)4-6 hours talk time/playing music, 200 hours standby time. (4) Battery: Rechargeable Li-Polymer battery. AC adapter charging or USB cable charging. (5) One-touch answer, call rejection, Last number redial, Voice dialing, Volume +/Volume -,Pairing encryption and authentication. Automatic re-connection if Bluetooth link is disrupted. For music: play/pause/next song/previous song/stop. (6)Audio spec.: Frequency Response: 20 Hz - 20 KHz Sample Rate: 48 KHz, 16 Bit SPL (Sound Pressure Level): 105 dB at 1 KHz THD (Total Harmonic Distortion): 0.5 % SNR (Signal to Noise Ratio): 85 dB (7) Bluetooth Profile Supported: A2DP (Advanced Audio Distribution Profile) AVRCP(Audio Video Remote Control Profile) HSP (Headset Profile) HFP (Hands-Free Profile) (8) Universal, compatible with all Bluetooth enabled devices which accord with Bluetooth v1.2/v1.1 standard. (9) chat:Very easy and comfortable to chat via the online messenger or IP phone such as Skype,MSN,Yahoo Messenger...etc. (10) Dimensions: 3.8 x 3.8 x 1.9 cm, Weight: 44 g with Battery. (11) Asseccories: a. Bluetooth stereo headset main body. b. Manual (English & Chinese) . c. USB cable. d. 100-240v AC adapter optional. (12) Carton: pcs/Carton KG/Carton Carton size: (L) * (W) * (H) CM