1. Drive: 40mm
2. Impedance: 32 OHM
3. Bluetooth version: Bluetooth v5.2
4. Bluetooth frequency band: 2.4GHz
5. Power level: CLASS II
6. Bluetooth distance: 10 meters barrier-free
Seven. Frequency response: 20-20000Hz
8. With A2DP/AVRCP high-quality stereo audio transmission and remote control protocol
9. Charging time is about 2 hours
10. Talk time is about 10-12 hours
11. Music time is about 10-12 hours
12. Standby time is about 120 hours
13. Battery capacity 250MAH
14. Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger)
15. Compatible mobile phones: 99% Bluetooth mobile phones compatible with Android, Apple, Microsoft and Symbian systems


















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