NW-Pro 9 HIFI In-ear Bluetooth Headset with Charging Compartment & Smart Digital Display & Fingerprint Touch Control

1. The sound unit is true: copper ring + PK 32 ohms 2. Headphone form: in-ear 3. Frequency response range: 20HZ-20KHZ 4. Binaural call: support 5. Bluetooth specification: Bluetooth 5.1 6. Delay time: 40ms 7. Charging port: Type-C 8. Headphone battery capacity: 30mAh 9. Battery capacity of the charging box: 200mAh 10. Life time: 5-6 hours 11. Charging time: 1 hour 12. Music mode: better fidelity HiFi sound quality, dynamic range, excellent acoustics 13. Game mode: low latency in the game, position recognition by listening, no resistance to eat chicken