To activate your LED Multi Colored Round Tambourine press the button on the inside. With every click of the button choose from 6 options: rainbow flash slow color change all LEDs steady on red blink green blink & blue blink. Dimensions: Diameter: 6.0 in. Depth: 1.75 LED Colors: 3 Red 3 Blue 3 Green Batteries: Includes 3 replaceable AAA Batteries. Packaging: Individually wrapped poly bag - 12 pieces per bag- 72 pieces per carton.