Bluetooth Version : 5.0
Driver Size : 40 mm
Impedance : 32 Oh
Sensitivity : 19db
Frequency Response : 20hz – 20khz
Wireless Operating Range : Up To 15m
Built In Rechargeable Battery : 200mAh
Lithium Polymer Battery : A Level With Protective Plate
Working Time : Up To 10 Hours At 70 Volume
StandyBy Time : Appro. 200 Hours
Charging Time : 2.5 Hours