The MB Yellow Little Bass is a 4-string electric bass in the maker's entry-level range. It has a 30" short scale and a 20-fret laurel fingerboard on a maple neck, which makes it more compact to play than a full-length bass. The body is a P-style shape in poplar, finished in Markbass Yellow and fitted with a black pickguard and chrome knobs.

Electronics are passive, with a single-coil pickup and volume and tone controls. The bass is part of a three-model Yellow family that also includes a J-style and a P-style bass, and each instrument is inspected individually at the maker's headquarters in Italy.

Being a passive instrument, it connects with a standard instrument cable to a bass amplifier or other input. A bag and a strap are supplied with it.