Seven colors & Three Modes: This light has 7 colors (white, blue, red, green, yellow, purple, ice blue) for choose. There is a on/off button on the back of the cup holder. Long press the button will turn on/off the light. Each time you press to change a color or mode, including three modes: monochrome constant light, automatical color changing mode, breathing light mode. Easy to Use: There is a button on the back of the light for you to control light mode and change lights color. Pressing the button once can change a color or mode. It's very convenient to choose a color or mode you like. Long press to turn on or down the lights. Vibration Sensor: Built-in light and vibration sensor. This light will automatically turn on in the dark when it senses vibration. Without vibration or movement, the coaster lights will automatically turn off. Long Battery Life : The product is charged by a USB cable. The light can be fully charged for half an hour. Package Included: 2 x Led Lights. 1 x USB Cable. (Note: Please charge the power before using. and also tear off the surface protective film)