BLUETOOTH HEADPHONE

Chipset:JL
Bluetooth Version: V5.3+EDR 
Transmission Distance:10 m 
Playing Time:10 hours 
Standby Time: 300 hours 
Battery: 400 mAh rechargeable lithium battery
Charging Time: 3 hours
Speaker: Ø 40 mm
Sensitivity: 110 + 3dB S.P.L at 1KHZ
Impedance: 32 Ω
Frequency Response: 20hz-20khz
Rated Power: 15mW * 2
Music Playback Time: 10h