This LED EL T-shirt is made of 100% cotton. It has an electro-luminescent EQ meter emblazoned across the front that reacts to and "pump" with whatever you're listening to. And it also gives a visual rhythm guide to others.It is powered by a battery pack that put inside the T-shirt.
Power Supply: Standard 4*AAA batteries(not included) Slide switch to operate power
Note: Please do not bend or press the flash panel Do not submerge any part of the flash panel Dry clean or hand wash only.
Remove EL panel, battery pack and the whole power cord carefully before washing.