To activate your LED Super Soft Star Pillow, press on the front of the pillow and watch the colors pulse and change. After 10 minutes, the lights will turn off. Batteries are located within a pocket on the side. NOTE: Silky soft white fabric shell of LED Pillow is 100% polyester. Not machine washable, spot clean only. LED Colors: Rainbow Pillow Width: 16" Comes ready to use with 3 replaceable AA Batteries.