Driver Unit: ø6*2

Frequency Response:20-20KHz 

Impedance:16Ω±15% at 1KHz

Sensitivity:96±3dB at 1KHz 1mW

THD:≤3% at 1KHz 

Max Input Power:5mW

Bluetooth ver.: V5.0

Chip:BES2300IH

Working time:Around 10 hrs 

Standby time:Around 150 hrs   

Charging connector:Micro USB

Charging time:Around 1.5 hrs