Bluetooth solution: QCC3020

Bluetooth version:V5.0

Support agreement :A2DP,AVRCP, HFP, HSP,SBC,AAC,APTX

Operating distance:10M 

RF:  2.4G

Charging box Battery:300mAh

Earphone Battery :40mAh

Box full charge time: about 1.5 hours

Earphone full charge time :1.5 hourS

Repeat charge for earphone : 3 times

Earphone Playing time: up to 8 hours                          

Driver Unit:6mm

Sensitivity:92dB ±3dB

Frequency range: 20Hz~20KHz

Impedance :16Ω