The Kustom Madero 10 is a portable amplifier designed especially for the acoustic instrumentalist on the go. The Kustom Madero 10 can be used as a standard desktop/ floor amplifier or used as a portable amplifier by utilizing the included shoulder strap and six AA batteries (batteries not included). The Kustom Madero 10 also comes with a removable peel and stick-on pickup that electrifies your acoustic instrument. With an aux input to pump in your favorite music or tracks and a headphone out for quiet playing the Kustom Madero is the perfect mobile amp-on-the go.