Product parameters:
1. Bluetooth version: 5.0.
2. Bluetooth distance: greater than or equal to 10m.
3. Material technology: ABS environmental protection material.
4. Single earphone size: 4x1.6x1.5cm, thickness: 0.6cm.
5. Charging case size: 5.1cmx4.1cm, thickness: 2.4cm.
6. Net weight of single earphone: 3.5g.
7. Charging compartment weight: 27g.
8. Single headset battery capacity: 30mAh.
9. Charging case battery capacity: 300mAh.
10. Play time: about 4 hours.
11. Channel mode: 2.0 true stereo.
12. Playback format: A2DP / AVRCP / HFP / HSP.
13. Speaker specifications: 13-inch dual composite membrane speaker.
14. Distortion rate: THD is less than 0.1%.
15. Frequency response: 20-16KHz.
16. Power supply mode: Built-in lithium battery / Type-C charging port.
17. Charging box socket type: Type-C.
18. Product features: power display, call function, music playback.