Having a 4th of July Party and want a way to light up the party or event? These Patriotic Sequin Light Up Fedora Hats can be worn to light up any bar, club, or 4th of July party. The LED lights reflect off the sequins for a bigger and more awesome light show. What a stylish way to party. To activate press the button on the battery pack inside the fedora. Can be set on a flashing white light. Comes ready to use with 2 replaceable batteries and is a one size fits most design.