Product specification

Driver Diameter: 40 mm

Impedance: 32 Ohms

Sensitivity: 102 dB +/- 3 dB

Frequency Response: 20 Hz – 20 kHz

Rechargeable Li-ion Battery 3.7V/600mah

Charging Time: 1-2 Hours

Playing Time: 3-4 Hours

Bluetooth Range: 32.8 Feet

Bluetooth Version: 5.3, JL6955F