Chipset : JL 7018 

Hybrid ANC (FF + FB ) 

Up to -35dB noise reduction depth

Bluetooth version: V5.4

Driver Unit : 40mm

Impedance : 32Ω±15%

Sensitivity : 108db ±3dB 

Mic Sensitivity : -42±3db 

Directivity : Omni-directional 

Working range : 10M 

Battery Capacity : 500 mAh  

2.4G Working time : Around 20 Hours 

Bluetooth Working time : Around 40 Hours

Charging time : 1-2 hours