Hit the guitar design on the front of this t-shirt and they'll actually be playing through a mini, built in speaker. Everyone will be amazed to see the cool guitar design on your t-shirt actually makes guitar like sounds. Strum out a tune to accompany music, singing or simply perform your own solo. Made from a high quality 100% cotton t-shirt.Black.To fit men's chest size 38-40ins.Batteries required 4 x AAA, not included.Manufacturers 1 year guarantee.