drum machine
From Longman Dictionary of Contemporary Englishdrum machineˈdrum maˌchine noun [countable] a piece of electronic equipment that makes patterns of sounds like drum musicExamples from the Corpusdrum machine• We strap on the goggles and headphones which are wired up to what looks like a drum machine.• Fanshawe uses his as drum machine, confessor weight-training apparatus.• T: It sounds like he only knows one programme on the drum machine.• Unplug the drum machine and do us all a favour.