Item: BT-200B Mono Bluetooth  Headset
1.Elegant,Small and Compact
2.One key Design
3.Automatic Volume control

Version: V2.0+EDR
Mode:    Hands Free/Headset
Frequency:2.4GHz
Transmit Power: Class 2
Range:   10M
Power:   AC Input 110-240V, DC  Output 5V
Talking Time: 2H about
Standby Time: 75H about
Dimmension: 35*18*9mm
Product Weight: 8g about