SonicGear Airphone 7 Bluetooth Headphones Black

Bluetooth Version : 5.0 _x000D_
Driver Size : 40mm_x000D_
Impedance : 32ohm_x000D_
Sensitivity : 19db_x000D_
Frequency Response : 20hz – 20khz_x000D_
Wireless Operating Range : Up To 15m_x000D_
Built In Rechargeable Battery : 200mah_x000D_
Lithium Polymer Battery : A Level_x000D_
With Protective Plate Working Time : Up To 10 Hours At 70% Volume_x000D_
Standby Time : Approx. 200 Hours_x000D_
Charging Time : 2.5 Hours