Live your dreams and become a Rockstar with our Blue EL Wire Slotted Shades. Our Blue EL Wire sunglasses are designed with lined bright El Wires for a funky and cool look. With an easy switch button and different light modes: fast flash, slow flash, and constant on. Shades are sound activated, just turn on the other button on the battery pack. Watch the lights reacts to sound or music. Perfect for birthdays, concerts, and any night events when blue fits your color scheme. Also ideal as gifts, prizes, and party favors. 2 AAA batteries are needed but not included.