The Latest Light Up T-Shirt. A successor to the No. 1 best selling EQ Electronic T-Shirts, our dancer collection is the latest of them all. Watch the figure on the T-shirt panel dance to the beat as soon as it listens to music. Clever eh? These electronic patches light up on the T-shirts and are sound sensitive. How? Well a clever mini battery pack is hidden in a small pocket just inside the hem which carries an onboard sonic sensor. Foldable and washable these T-shirts are easy to maintain and use just like any other T-shirts. With new technology we have enhanced the panels to make them so light and soft, you'll barely feel the weight. You can bling it up in chill-zones such as clubs, concerts, sporting or college events. The coolest we've done yet for you to sport it.