USAMS US-XD18 TWS In Ear Bluetooth Earphone(Black)

1. Material: PC
2. Bluetooth version: 5.3
3. Speaker diameter: 13mm
4. Bluetooth connection distance: about 12m
5. Signal-to-noise ratio: 70dB
6. Speaker frequency response range: 20HZ-20KHZ
7. Headphone battery capacity: 35mAh
8. Continuous call time: about 3h
9. Continuous play time: about 6 hours
10. Headphone charging time: about 1h
11. Charging compartment battery capacity: 400mAh
12. Charging time of charging case: about 2h
13. Charging box input: 5V
14. Battery life: about 26 hours
15. Firm in-ear type, listen to good sound quietly
16. Upgraded Bluetooth 5.3, sensitive fingerprint touch
17. Polymer composite diaphragm, stereo sound effect
18. High-definition microphone, conversations are as clear as face