The Led EL T shirt is made of 100% cotton. It have an electroluminescent panel(EL) across the front that reacts to music and 'pump' in time with whatever you are listening to . It also fives a visual rhythm guide to others.<br>It is powered by battery pack that put within inside of t shirt.<br>This is a sound actived shirt good for Party, Bar,festiveal,birthday,chsristmas and so on.<br><br><img src="//gdetail.image-gmkt.com/021/439/701439021/2016/12/dbddb693-3c63-4a30-a0cb-2fc15a943e1f.jpg" undefined=""><br>Fearures:<br>1. Brand New &amp; high quality.<br>2. Szie: S,M,;L,XL,XXL,XXXL.<br>3. The tshirt lighs up and reacts to sound.<br>4. Volume control for the sensitive of music.<br>5. EL panel attached to the Disco t shirt with velcro, can be removed and replaced.<br>6. Hand washable, just unplug the battery box and el panel.<br>7. Has a sound sensitivity control to take you all the way from loud anthem beats to the chill out room.<br>