JOYROOM JR-TS1 Sleep Series True Wireless Bluetooth Earphone(Black)

1. Material: ABS+PC2. Power input: 5V/1A3. Charging box charging port: Type-C4. Number of cycles: about 5 times5. Charging box charging time: about 1.5h6. Headphone charging time: about 1.5h7. Shell battery capacity: 400mAh8. Headphone battery capacity: 30mAh9. Standby time: about 120h10. Talk time: about 3 hours (70% volume)11. Music time: about 4 hours (70% volume)12. Frequency response range: 20Hz-20KHz13. Bluetooth range: 10m14. Working frequency: 2402MHz-2483.5MHz15. Supported protocols: HFP, A2DP, AVRCP16. Audio decoding: AAC, SBC17. Bluetooth version: V5.318. Ultra-compact design, long-lasting comfort and better sleep19. Surrounding silicone ear wings, soft and skin-friendly, comfortable to wear, and fit firmly20. Ergonomic design, effective passive noise reduction, suitable for different environments21. Fantastic transparent lid, automatically connected when opening the box22. The latest Bluetooth 5.3 technology, faster and more stable