These fun Masquerade Butterfly LED Sunglasses each come with 10 bright LEDs in an assortment of 2 colorful frames. To activate your LED Butterfly Shades, press the button on the battery pack located behind the ear piece. Each push of the button changes the flash function: choose from fast flash, to blink, to a still steady light. Size: One size fits most LED Colors: Jade Sunglass Frame Colors: Purple, Jade Butterfly LED Sunglasses include 3 replaceable AG13 Batteries.