stereo bluetooth 2.0 headset, sport style, gift box packing stereo bluetooth headsetTalking Time 8hrs Standby Time130hrs dimension65×25×22mm Operation range:up to 10meters Weight17g Battery:li-ion Polymer 120mAh Bluetooth 2.0Frequency range:2.4GHz-2.48GHz CSR CHIPEST stereo bluetooth 2.0 headset, sport style(model#PG-BTH-S9)