1.Bluetooth specificationV 2.0, class 2

2.Range: up to 30 feet(10 meters)

3.Call time: 6 hours

4.Standby time: 130hours

5.Battery: Built-in rechargeable Lithium-polymer battery

6.Others: Stylish and comforatble design with very mini size,superior clear voive quality,easy one touch operation for call, end,Voice activated dialing