LED Ice Buckets feature a removable inner bucket that allows you to wash and separate the outer shell that holds the LEDs and batteries. That means you can do a full washing of the inner bucket without worrying about damaging any of inner-workings. To activate, press the button located on the bottom of the bucket. The only function is a pulsing color change. LED Colors: Red, Blue, Green Dimensions (W x H): 11" x 9.5" LED Ice Bucket comes ready to use with 4 replaceable AA Batteries.