Product information:

Transmission range: 10 meters
Function: battery display, call function, voice control, support music
Channel: Stereo
How to use: Earplug type
Single or dual ear: Bilateral stereo
Color: red, green, blue, gun color

Size Information:

Charging compartment size: 56*38*38mm
Headphone size: 33*17*16mm

Packing list: 

packing box/instructions/TYPE-C charging data cable/inner support