Smallest Bluetooth headsets v2.0+EDR,BH-0101008 (1) CSR Blue Core4 chipset. Smallest Mini Bluetooth v2.0 headset, alike Samsung wep 200 But NO Need Charging Box, data Rate 3 Mbps. compliant with v1.2. (2) Bluetooth Class 2, 10 meters distance. (3) 6 hours talk time, 200 hours standby time. (4) Battery: Rechargeable Li-Polymer battery. Charging:USB charging. AC adapter charging. (5) One-touch answer, call rejection, Power ON/Off, Last number redial, Voice dialing function, Volume +/Volume -,Pairing encryption and authentication. Automatic re-connection if Bluetooth link is disrupted. (6) Noise suppression, echo elimination and duplex sound for crystal clear quality calls,Wonderful tone. (7) Universal,compatible with various Bluetooth enabled devices such as mobile phones, PDAs and Laptops. (8) Bluetooth Profile Supported: HSP (Headset Profile) HFP (Hands-Free Profile) (9) Removable ear-hook fits either ear , Fashion and stylish design,mini bluetooth headset. (10) chat:Very easy and comfortable to chat via the online messenger or IP phone such as Skype,MSN,Yahoo Messenger ...... etc. (11) LED Indicator Status: Red/Blue/Red + Blue . (12) Operating Temperature -10 ~ +55 degree centigrade. (13) Dimensions: 42 mm(L) x 18 mm(W) x 11 mm(H). Weight: 9g. (14) Accessories: a. Bluetooth headset. b. USB cable . c. Manual (English & Chinese) . d. A/C adapter is a option. (15) Carton: - 40 pcs/Carton - G.W. 3.8 KG/Carton N.W. 3.2 KG/Carton - Carton size: 50.5 (L) * 31.5 (W) * 28 (H) CM.