Bluetooth version: V2.1+EDR,Chipset: CSR Bc4 Talk time: Up to 5 hours,Standby time: Up to 120

 Specification

Operation range: Up to 10 metersBluetooth version: V2.1+EDR,Chipset: CSR Bc6Talk time: Up to 3.5 hours,Standby time: Up to 10   hours                                               Charging time: 1-2 hours                        Weight About: 6.5 GramsDimensions(L x W x H): 33 x 15.4x 9 mm                                                                            Battery type: Rechargeable Poly -Li battery                                                                                     Support profile: Headset and Hands-freeGenernation Feauture: pick up a call, end a call, reject a call, call redialMute, Transfer a call,volume adjustment, Voice-dial

V2.1 Bluetooth mono headset