Chipset : Bluetrum 5712 

2.4G + Wireless + Wired USB 

Bluetooth version: V5.4

Driver Unit : 50mm

Impedance : 16Ω±15%

Sensitivity : 114 db ±3dB 

Mic Sensitivity : -47±3db 

Directivity :  Uni-directional (ENC Mic) 

Battery Capacity : 1000 mAh 

2.4G Working time :Around 50 Hours 

Bluetooth Working time :Around 80 Hours

Charging time : 1-2 hours

20ms low latency on 2.4Ghz Mode