What a way to light up any party or event! The Rainbow Sequin Light Up Fedora Hats can be worn to light up any bar, club, New Year’s Eve party, or Halloween Party. The LED’s reflect off the sequins for a bigger and even more awesome light show. What a stylish way to show off at any party or event. To activate press the button on the battery pack inside the fedora. Can be set on random flash, blinking, or a steady light. Comes ready to use with 2 replaceable batteries in a one size fits most style.