The Roland MOBILE AC Acoustic Chorus Guitar Amp is an ultra-compact and battery powered amplifier. Thanks to its 5W of power you are provided with a powerful tone that is perfect for practising studio or small gig use whilst its battery powered design ensures you can do this anytime anywhere. Wanting to shape the sound of your guitars tone? Use the five control knobs alongside the chorus and wide buttons to find a style that suits you. The MOBILE AC delivers a big sound in a ruggedly built packed that will effortlessly slide into your backpack. Huge sound small design and a great tone.