Main Features: 1.Forldable Switch Button bar
2.Automatic Volume control
3.Comfortable Ear Hook

Mono Bluetooth Headset
Version: V2.1+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
Product Weight: 12g about