... Description Mono Bluetooth headphone U&I-04, 8 hours tallk time Main Advantages:1.Stylish design and best quality mould and ... re-dialing,refusal of incoming call function.9.Talk time: 8 hours; Standby time: 200 hours.10.CE,FCC,BQBand ROHS approval ... ,H12MMWeight:9gBattery:3.6V Rechargeable Li-polymer batteryTalk Time*:up to 8 hoursStandby Time*:up to 200 hoursOperating Temperature:-10~45Headset Passkey ...