... and sport meeting. EL equalizer T-shirt with a sound activated EL (electro luminance) design sewed onto it. This is a perfect ... .3-0.4mm,Designs: Over 600 designs available, also customized design is welcome.InverterInput 4AAA batteries,Size: 5.4*8.5 ... will beat up and down with the music or sound. The softer the music, the lower the bars, and the louder the music, the higher they go. 3. How ...