1.Bluetooth specification: version 1.2

2.Bluetooth profile supported: headset and handfree profiles

3 Works with all major Bluetooth mobile phones

4.Rang of frequency: 2.4GHZ spectrum

5.Broadcast range up to 10M

6.Volumn control and mute button

7.Power button (answer/end calls)

8.Built-in rechargeable Lithium polymer battery

9.Can speak up to 6 hours

10.Up to 100 hours of standing time

11.Power adapter

12.Working condition: Temperature:

Operation/storage: --15°C to 55°C, charge 0°C to 45°C