Flashing t shirts, Equalizer EL T-shirt, EL Music Activated Flash T-Shirt, Sound Activated t-shirtThey are the same EL design as the EL T-shirtsBrief introduction:Brace yourselves for a new cheesy number has arrived--Sound Activated Flashing T Shirt ! That is a shirt with a built in sound sensitive graphic equalizer. When the music beats, the equalizer moves to the beat of music! Different music frequency will activate a different equalizer bar, just like equalizer on your home stereo!