Guaranteed to make onlookers smile! The "bars" on this real functioning equalizer are made up of smiley faces. Watch the smileys light up in response to sound frequencies!

Each 100% cotton t-shirt has a hidden sewn-in pocket for the small control unit. Features a variable sensitivity dial to customize the level of reactivity to sound volume. Uses 4 replaceable AAA batteries. The shirt is hand-washable and comes in adult size XL only. The sewn-on design portion is about 8" x 5.5".