JOYROOM Openfree JR-OE3 Open True Wireless Bluetooth Earphone(Black)

1. Bluetooth version: BT5.4
2. Communication distance: 10 meters
3. Listening time: 5-6h
4. Battery capacity: 40mAh for earphones, 400mAh for charging box
5. Charging time: about 2 hours
6. Charging input: 5V/1A
7. Charging interface: Type-C
8. Material: ABS+PC
9. Audio codec format: AAC, SBC
10. Waterproof level: IPX4
11. High elasticity and skin-friendly material, embedded with flexible titanium alloy wire, self-adjusting to adapt to the ear
12. The left and right earphones can be worn at will without deliberately distinguishing them
13. Built-in 13mm speaker, composite diaphragm, makes the sound full in low frequency, transparent in mid-high frequency, and more balanced in sound quality
14. Adopt AI-ENC call algorithm to separate environmental noise and make calls with high quality