DUDAO U4S TWS bluetooth earphone Type C input

Bt solution: Jieli 6983
Bt version: 5.3
Bt transmission distance:10M 
Standby time: 300h 
Talk time:4.5 hours 
Music time:80% 4.5hours 
Charging time: 2h
Battery capacity of headset: 25mAh 
Charging case capacity: 250mAh

1. super long time music time
2. type C input
3. high end shell material
4. Support iOS and Android system
5. competitive price