Binaural wireless HIFI sound magic headset

Talk time (with noise reduction turned on): 60h 
Impedance: 32Q2
Signal to noise ratio: ≥85dB
Charging time: 1-2h 
Transmission distance: ≤10m
Music playback time (with noise reduction turned on): 40h 
Sensitivity: 113+3dB
Frequency response range: 20Hz-20KHz