Specifications:

Bluetooth Version: V4.1

Chip: CSR8635

Frequency Range: 20Hz~20KHz

Distortion: 0.5%

S/N Ratio: 80dB

Sensitivity: 96±3dB

Impedance: 32Ω

Driver Unit: 40mm

Charge Time: 2.5 Hours

Working Time: 20 Hours

Working Range: 10 Meters