ONIKUMA TX612 Dual-Mode ENC Dual-Microphone Noise Reduction Wireless Bluetooth Earphone 1. Chipset: Jerry AC7003D8 + JL7016 2. Bluetooth Version: 5.4 3. Material: ABS 4. Supported Protocols: HSP-V1.2, HFP-V1.7, A2DP-1.3, AVRCP-1.6 5. Decoding Format: AACSBC 6. Bluetooth Transmission Frequency: 2.402GHz-2483.5MHz 7. Bluetooth Range: 10m 8. Charging Capacity: 320mAh 9. Headphone Battery Capacity: 40mAh 10. Charging Case: 4 Charges 11. Charging VoltageCurrent: DC5V-300mA 12. Headphone Charging Time: 1.5 hours 13. Charging Case Charging Time: 1.5 hours 14. Operating Time: Approximately 6 hours 15. Standby Time: Up to 80 hours 16. Headphone driver: 13mm, 32 ohm 17. Frequency response range: 20Hz-20kHz 18. Low latency: 55ms 19. Charging port: Type-C 20. ENC intelligent noise cancellation system significantly improves the signal-to-noise ratio of calls 21. 2.4GHz flash connection technology for a more stable and faster connection experience 22. Built-in charging port for plug-and-play use 23. LED smart display with real-time battery monitoring 24. Ergonomic design for a comfortable fit