Wireless Version: V5.0+EDR
Transmission distance: 10m
Playing time: 4 hours
Stanby time: 300 hours
Battery: 200 mAh rechargeable lithium battery
Charging time: 1.5 hours
Driver unit: 40mm
Impedance: 32Ω
Sensitivity: 110±3dB S.P.L at 1KHz
Frequency Range: 20Hz-20KHz
Max Input Power: 15mW