The Marshall MS-2 half stack may be the ultimate battery-powered micro amp. Featuring the classic Marshall grille cloth, one watt of power, and clean controls for overdrive, tone, and volume. It packs the Marshall tone into a unique, tiny case that is powered by a single 9V battery.

Marshall didn’t try to pack too many features into this unit, only the most important ones while keeping the look authentic. It has channel switching, volume and tone controls, and a headphone jack that doubles as a preamp out. All of this in a small, lightweight unit that incorporates a belt clip for the ultimate portability.

$50 | Amazon