Product specifications:
1.
Charging time: about 2 hours.
2.
Standby time: 5 days.
3.
Music time: about 4 hours.
4.
Headphone material: plastic.
5.
Channel: 2.
6.
Bluetooth version: 5.0.
7.
Battery type: polymer lithium ion battery.
8.
Headphone battery capacity: 3.7V 43mAh.
9.
Charge box battery capacity: 3.7V 800mAh.
10.
Waterproof performance: IPX4.
11.
Transmission radius: 10m.
12.
Dustproof performance: IP6X.
13.
Headphone net weight: 51g.
14.
Complete set weight: 160g.