Spec:
Bluetooth version :5.0
IC: Jieli chip
Earphone capacity :40mah
Case capacity :200mah
Working hours :2-3 hours
Cyclic charging :3-4 times
Function: Volume+/-, Song next & pre, Phone answer & hang up
Material: ABS
Color: black ,red color
Support OEM customized services, such as logo, specifications, colors, pack etc
Warranty :12 months