Bluetooth version :5.0
* Chipset :697N
* support: HFP, HSP, A2DP, AVRCP
* Charging time: about 1.5 hours
* Standby time :100 hours
* Transmission distance ≤10M
* Battery capacity :30mah
* Charging case battery capacity :250mAh
* Horn :10 mm
* Sensitivity :100dB±3dB
* Frequency range: 20HZ-20khz
