A metronome is a device that produces an audible click or other sound at a regular interval that can be set by the user, typically in beats per minute Stock Photo -
Metronome line icon, sound design concept, music and beat mechanism sign on white background, classic metronome with pendulum | CanStock
A metronome device that produces sound at regular interval that can be set by the user in beats per minutes, vector, color drawing or illustration Stock Vector Image & Art - Alamy
Korg TM-60 Combo Tuner Metronome - Dieter Otto e.K Inh. Martin Ecker