Spec:

Bluetooth version :5.0

IC: Lanxun chip

Earphone capacity :50mah

Case capacity :1500mah

Working hours :4-5 hours

Cyclic charging :12-15times

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

Material:  black ABS

Color:  black.blue,slivery or custom color

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

Warranty :12 months