HXSJ Air-S28 TWS Bluetooth 5.3 True Wireless HiFi Stereo Make-up Mirror Earphones with Charging Case (White) Tag-Lenovo Spare Parts Use time: 5 hours

Use time: 5 hours

5-inch SATA I/II/III hard drives for flexible connection and portability

Vibration detection sleep

One Package Size 24cm * 14cm * 6cm / 9

Built-in 1000mAh large-capacity battery

HXSJ Air-S28 TWS Bluetooth 5.3 True Wireless HiFi Stereo Make-up Mirror Earphones with Charging Case (White) Tag-Lenovo Spare Parts Use time: 5 hours1. Bluetooth version: BT5. 3 2. Effective distance: 10m 3. Horn diameter: 13mm 4. Speaker power: 3MWx2 5. Impedance: 32 Ohm 6. Microphone sensitivity: 42db+1dB 7. SNR: more than 90dB 8. Distortion: less than 3% 9. Length of charging line: 30cm 10. Frequencyresponse: 20Hz~19KHz 11. Playing time: about 4 hours 12. Earphone battery capacity: 30mAh 13. Battery capacity of charging chamber: 300mAh 14. Weight: 53. 3g 15. Headphone size: 3. 3x2x1. 7cm 16.