Spec:

Bluetooth version :5.0

IC: JieLi chip

Earphone capacity :50mah

Case capacity :350mah

Working hours :3-4 hours

Cyclic charging :3-4 times

Function: Volume+/-, Song next & pre, Phone answer & hang up

Material:  black ABS

Color:  black, white ,pink color

Support OEM customized services, such as logo, specifications, colors, pack etc

Warranty :12 months