product properties
Bluetooth version :Bluetooth V5.0
Transmission distance: 10
usage time : 4
Standby time : 300
battery : 400 mAh
Charging time : 2
Sensitivity:110±3dB S.P.L at 1KHZ
impedance:32Ω
Frequency Range :20Hz-20 KHz
rated power :15mW×2
Music playing time :5h
Products include:
1 * Bluetooth Headphone
1 * Charging Cable
1 * Audio Line
Without product box