Earbuds TWS31

"1. Bluetooth version: V5.4 Jerry 6973D4 silicon microphone Li-ion battery plus OVP
2. Transmission distance: 10-15 meters
3. Charging method: Type-c DC 5V/1A 1H
4. Talk/listen to music time: about 4-5 hours
5. Speaker: 13MM marine composite film speaker
6. Charging box capacity: 300MAH with protection board
7. Earphone battery capacity: 25MAH with protection board
8. Certification: ROHS
9: Support Wireless charging"