1. Bluetooth version: 5.0
2.Material: ABS+PC
3. Transmission distance: 10m
4. Frequency response: 20Hz-20kHz
5. Signal to noise ratio: greater than or equal to 90db
6. Sensitivity: -85db
7. Distortion: 5%.
8. Drive unit: 13mm
9. Impedance: 32 ohms.
10. Play time: 5-6 hours.
11. Standby time: 120 days.
12. Battery capacity: Earphone 25mAh charging compartment 200mAh
13. Dimensions: 54x47x21mm
14. Weight: 53g