Airphone 7

Specifications:

Bluetooth Version 5.0

40mm Driver Size

32Ω  Impedance

19dB Sensitivity

20Hz – 20kHz Frequency Response

Wireless Range: Up to 15m

200mAh Built-In Rechargeable Lithium Polymer Battery (A-Level with Protective Plate)

Working Time: Up to 10 Hours at 70%  Volume

Standby Time: Approx. 200 Hours

Charging Time: 2.5 Hours

brand: SonicGear