Perfect for your 80's party! Also great for raves, festivals, Halloween, clubs, and so much more!To activate your Electro Luminescent Green and Pink Shutter Shades, remove pull tab from inside the battery pack and press the button. Choose from 3 light functions: Flash, Blink, Still Light.Battery pack has a clip on back to help stay put in your pocket.Size: One size fits allLight Colors: Pink Frame & Green ShuttersShutter Shades include pre-installed, replaceable AA Batteries.