BT Version: BT 5.1
BT Protocol: HFP, A2DP, HSP, AVCRP
Transmitting Distance: 10m/33ft
Frequency Range: 20-20000Hz
Sensitivity: 102±3dB
Impedance: 32?±15%
Charging Box Capacity: 3.7V 380mAh
Earphone Battery Capacity: 2 * 3.7V 40mAh
Music Time: about 7 hours (depends on music volume)
Waterproof: IPX5
Material: ABS
Color: Black, White (Optional)
Product Size: 9.5*5.5*2cm/3.74*2.17*0.79in
Product Weight: 88g/3.1oz