Keep the party going and look cool when you wear our Multi-Color LED Retro Sunglasses. Our light-up sunglasses also feature a sound-activated light-up sensor! These battery-operated light-up clear plastic sunglasses feature tinted lenses and red, green, and blue LEDs. With a click of the on/off button, you can choose from 4 different light settings: slow flash, fast flash, and steady on, or flick the switch again and choose the sound reactive light-up function. One size fits most. (3) AG13 batteries are included & installed. Sold by the individual pair of sunglasses. Please order in increments of 1 pair.