Specifications:
Bluetooth Version: Bluetooth 4.1 + ERD
Bluetooth Profile: a2dp / HFP, HSP, AVRCP, GAVDP, AVDTP
Speaker Type: Bone conduction technology speaker, 1W dual speakers
Battery: 260mAh Polymer battery
Effective Range: 10m (33feets)
Receiving Sensitivity: 88dBm
Impedance: 8ohm
Frequency Range: 20 to 20KHz
Music Time: 8hours
Talking Time: 8hours
Charging Time: 2 hours
Standby Time: 10 days
Color: White / Black (Optional)
Item Size: Approx. 13.5 * 13.3 * 5.2cm / 5.31 * 5.24 * 2.05in
