Groovebox

A specialized drumcomputer which is made for live gigs, it also contains some sound generation for melodies and basses, mostly samples or synthesized, so in fact it is a synthesizer or sampler with a fine live-able sequencer.

Btw: Roland holds the name "Groovebox" so be careful when using it, it's like "walkman" for stereo cassette players (or even music players) - synonymous.