Spec:
Bluetooth version :5.0
IC: JieLi chip
Earphone capacity :30mah
Case capacity :300mah
Working hours :4-5 hours
Cyclic charging :4 times
Function: Volume+/-, Song next & pre, Phone answer & hang up
Material: ABS
Color: white or custom color
Support OEM customized services, such as logo, specifications, colors, pack etc
Warranty :12 months