Technology: BT 5.3, A2DP, AVCTP,AVRCP, HFP

Bluetooth Version: 5.3

Driver (each channel): 1 x 13mm Speaker driver

Sensitivity: 105dB±3dB@1KHz

Frequency Range: 20Hz – 20kHz

Impedance: 32 ohm ±15%

Microphone Type: MEMS (microphone chip)

Charging Time: 1.5 Hour

Battery Life: Up to 4 hours

Battery Type: Li-polymer (2 x 30mAh)

Operating Range:10m / 33ft.

IP Rating: IPX4

Weight: 7g (pair)