1. Sound activated EL animated panel 2. 4AAA battery pack 3. Any shape 4. Customize design 5. Can work with 6V adapter DescriptionEL T-shirt,sound active EL T-shirt,sound activated EL T-shirt,sound controlledEL T-shirt, equalizer T-shirt, T-qualizer T-shirtThis is the T-shirt that every body talks about—The sound activated equalizer with adjustable sensibility! Walk into a disco, bar or night ...