Bluetooth Stereo Headset,BH-0101402 Enjoy the streaming stereo music from a mobile, mp3 player, PC or PDA. Remote control song easily. (1) Bluetooth v2.0. (2) Bluetooth Class 2, 10 meters working distance. (3)4-6 hours talk time/playing music. (4) Battery: Rechargeable 3.7v/120mA Lithium 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 @ 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 v2.0 / v1.2 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: 46 x 21.6 x 21mm, Weight:26 g include Battery. Color: Black . (11) Asseccories: a. Bluetooth stereo headset main body. b. English Manual . c. USB cable. d. 100-240v AC adapter optional. (In default, charger is not included) (12) Carton: 40 pcs/Carton 4.8 KG/Carton Carton size: 50.8*31.5*28CM