To turn the Large Musical LED Butterfly Wand on, simply press the button on the wand. The button is located below the bottom butterfly. Press once for a fast flash of all the LEDs, press twice for a random flash, three times is a transition then flash of all the LEDs. Specifications: Size: Large Height: 18.5 in. Width: 7.0 in. LED Colors: 6 Red, 3 Blue, 2 Jade Batteries: Includes 3 AAA Batteries