REMAX TWS-9 Bluetooth Wireless Stereo Earphone with Charging Box

1. High-fidelity sound quality, longer battery life, touch operation.
2. 400mAh large-capacity charging compartment, with Bluetooth 5.0 low-power chip.
3. Automatic pairing at boot, master / slave switch, Chinese / English voice switch.
4. It is a headset and a mirror, which is convenient for looking in the mirror and applying makeup.
5. Transmission distance:> = 10 meters.
6. Frequency response: 20-20KHz.
7. Output sensitivity: 99dB+-3dB.
8. Microphone sensitivity: -42+-3dB.
9. Impedance: 16Ohm+-15%.
10. Rated power: 30mW.
11. Battery capacity: Headphone battery 50mAh; Charging case battery 400mAh.
12. Playing time: about 4 hours.
13. Input: 5V/500mA.
14. Output: charging box 5V/1A.