After you press the button about 3-5 seconds Opened it.then press 1 time change one color,Monochrome or Gradient color or flash RGB color.at last press 3-5 seconds again its close. 

Feature: 

Material: Acrylic
Diameter: about 2.67inch,Please measure whether the diameter of your car cup holder is suitable.
Size: This product is suitable for most cars.
Casing Color: Black
Led Color:7 Colors mode is totally as the picture shows. The pictures are taken by actual products.
Installation Position: Cup groove
Note: There is protective film on the pad, please peel it off before you putting it into the cup groove.

Package Includes: 

• 1 x usb charging cable (Android Cable)
• 1 Pair of LED Car Cup Holder (WithToyota logo)