Get wild with Light Up Jumbo Sunglasses! These LED Party Shades are loaded with lights too, 10 LEDs to be exact. Light Up Party Glasses have a great oversized shape, very "wayfarer", hip & are most excellent on the dance floor. To activate, remove the pull tab & press the button on the battery house located behind the ear. Choose from 3 light functions: flash, blink & steady. 3 AG13 batteries are included and replaceable.