HXSJ Air-S28 TWS Bluetooth 5.3 True Wireless HiFi Stereo Make-up Mirror Earphones with Charging Case (Pink)

1. 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. Package List: – Bluetooth headset x 2 – Charging cable x 1 – Charging box x 1 – Manual x 1