Chipset : JL 

2.4Ghz + Bluetooth  

Driver Unit : 50mm

Impedance : 16Ω±15%

Sensitivity : 114db ±3dB 

Frequency Response : 20HZ-20KHZ 

Mic Sensitivity : -42±3db 

Directivity : omni-directional 

Working range : 10M 

Battery Capacity : 800 mAh

Working time : 20 hour in 2.4Ghz mode , 50 hours in Bluetooth mode

Charging time : 2-3 hours

Detachable Microphone