1.Bluetooth Version: V5.0
2.Earbuds battery capacity: 3.7V,40mAhx2
3.Charging case battery capacity: 450mAh
4.Working range: 10M
5.Music play time: 4H
6.Earbuds standby time: 40H
7.Earbuds charge time: 1H
8. charge time:1.5H
9. case size: 60.7x51.8x30.2mm
10.Mini Size and comfort wearing