Bluetooth: V5.4

Bluetooth Distance: 10-15m

Play Time: 7 H *3.4Times

Talk Time: 4hours

Battery Capacity: Earbuds 33mAh; Charging case 400mAh

Speaker: 10mm

Charging Time of  earbuds: about 1.5hour harging Time of  case: about 2 hours

1.Earbuds with Li-on Battery Protection

2. Charging Case with Power Display 丨In-Case Detection

3. Charging Case with Li-on Battery Protection丨OVP丨OCP

4. Waterproof Rating IPX4