REMAX TWS-21 Bluetooth 5.0 Stereo True Wireless Bluetooth Earphone(White)

1. Bluetooth version: 5.0
2. Material: ABS
3. Battery capacity: 40mAh
4. Charging time: about 1.5 hours
5. Standby time: about 90 hours
6. Talk time: 4 hours
7. Music time: 4 hours
8. Bluetooth distance: 10 meters
9. Wireless transmission, stable connection without delay
10. Mini, easy to carry
11. Ergonomic design, comfortable to wear