Bluetooth version: Bluetooth 4.1 + EDR
Frequency: 2.4 ~ 2.48G Hz
Transmission distance: Up to 10m
Communication protocol: HFP, HSP, A2PDP, AVRCP
Frequency response: 2.4GHz
Microphone sensitivity: -45dB
Power: Built-in rechargeable Li-ion battery
Charging voltage: 5V
Charging time: 2 hours
Conversation time: 5 ~ 6 hours
Standby time: 160 hours
Color: Black
USB cable length: 50cm / 19.69in
Main item size: Approx.11.5 * 3.0 * 1.5cm / 4.53 * 1.18 * 0.59in
Main item weight: 14g / 0.54oz
Package size: 9 * 7.8 * 3.4cm / 3.5 * 3.0 * 1.33in
Package weight: 43g / 1.50oz