4 x AAA batteries. Expect between 30-40 hours of use before replacing batteries.
Operating instructions:
Install the batteries and connect the battery pack to the shirt. Conceal the small battery pack in the hidden pocket switching it ON. Adjust the sensitivty knob on the battery pack depending on the volume of the music.
Looking for a way to make an even bigger statement on the dance floor? Team-up your T-Qualizer with an LED Rock Star glove (or two) and make yourself the center of attention!