Operation range: Up to 10 meters Bluetooth version: V2.0+EDR Solution: CSR Bc6 Talk time: Up to 5 hours Standby time: Up to 200 hours Weight: about 8 grams Dimensions(L x W x H): 36 x 13 x 10.5 mm Battery type: Rechargeable Poly -Li battery Support profile: Headset and Hands-free Transfer a call between the mobile phone and the headset Reversible hook for either ear with smooth material for long hold Multifunction: make a call, end a call, reject a call, call redial Muting, volume adjustment, call waiting*, Voice recognition* *Some functions need the support of the phone feature or network service