Specification:

Bluetooth version：V5.1

Speaker size：Ø10.0mm

Frequency response：20Hz-20KHz

Sensitivity：98±3db

BT range：≥10m

Battery capacity：

earbuds 30mAh，charging case 250mAh

Playing time：4H

Total play time（earbuds+charging case）：

around 16H

Standby time：75H

Charging time: earbuds 1.5H,charging case 1.5H