Electronic metronomes generate the clock signal through a quartz. For this reason, they are also known as quartz metronomes. You have to think of the quartz as a chip, the so-called quartz oscillator. It consists of electronic circuits and an oscillating crystal in a standardized housing. The setting of the counting times is carried out depending on the make using appropriate switches or toggle switches. The selected frequency appears on a display. Many digital metronomes have an interface to which headphones can be connected. A quartz metronome "ticks" very precisely and is therefore particularly suitable as a clock generator.