TOP QUALITY MATERIALS: LED car coasters are made of Acrylic, they are dust-proof with waterproof surface that ensures holing cup safe, and the smooth surface is easy to clean for long time using. VIBRATION-SENSING: when luminescent cup pad senses vibration, it will automatically turn on in the dark, and lights will automatically turn off in 15 seconds without sensing vibration, it's smart and convenient. PACKAGE CONTNETS: you will get 2 pieces LED car coasters and 1 piece USB cable. It is convenient for connecting to the car's USB interface directly, and the nice performance makes LED cup holder lights can work long time (last about 8 hours) after fully charged. ADD THE COOL COLOR FOR YOUR CARS: Our LED cup holder light have 3 modes ( Colorful, breath and gradient ) and 7 colors light ( White, Red, Blue Green, Yellow, Purple and ice blue ). You can change the colors freely according your moods and will give you a cool driving experience. EASY TO USE: there is a button on the back of USB charging cup mat for you to control light mode and change lights color, a adorable gift to family, fiends, colleagues and most car owners.