This thing is cute - it looks just like the big Deluxe amps from Fender, but this baby is only 4-3/4" tall by 5-5/8" wide. Power output: 2Watt RMS. Power source: a 9V battery or 9V adapter. Speaker: 3" 8 Ohm. The sound generated by this little amp is much bigger than you might think, and you've got plenty of controls to dial it in the way you like it. Features include: An input jack, Volume, Tone, Drive, and On/Off control knobs, a power LED light, Headphone jack, and an Adapter input jack.