Item: BT-700 Mini Mono Bluetooth Headset

1.Foldable Switch Button bar
2.Automatic Volume control
3.Comfortable Ear Hook
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