1. Bluetooth: 5.2
2. Battery capacity: 300mAh
3. Transmission distance: 10m
4. Frequency response range: 20Hz-20KHz
5. Sensitivity: 108-111dB
6. Material: ABS+PC
7. Charging time: about 1h
8. Playing time: about 3.5h
9. Standby time: about 160h
10. Half-in-ear design fits the curvature of the ear, making it easy to wear for a long time.
11. Connect immediately after opening the cover, and connect quickly.
12. 13mm large dynamic coil, restore delicate vocal instruments.