This LED EL T-shirt is made of 100% cotton. It has an electro-luminescent panel (EL) across the front that reacts to music and and 'pump' in time with whatever you are listening to. It also gives a visual rhythm guide to others. It is powered by a battery pack that put within inside of T-shirt.
LED T-Shirt Iron Man Sound Activated EL LED T-shirt Features
This iron man T-shirt lights up and reacts to sound Made from 100% cotton, this high tech. Volume Control for the sensitive of music Hand Washable, just unplug the battery box Has a sound sensitivity control to take you all the way from loud anthem beats to the chill out room Powered by two battery cleverly hidden within an inside shirt pocket Good for music or dance fans and sports fans, especial for Hip Hop fans