Roomy enough to settle into each window before the next tick, twenty seconds runs three beeps a minute. It paces a twenty-second drill or hold, a step in a timed process, or a count you want called while you keep both hands on the work.
Where ten seconds can feel rushed, twenty gives you room to finish and reset. Press start and it carries on at three to the minute; stretch the run to however long the process takes.
Four beeps to the minute — a quarter-minute beat every 15 seconds for paced drill rounds, short holds, and timed tasks.
The most-searched pacing beat: a beep every 30 seconds, twice a minute, for drill stations, physio holds, and posture changes. Pick the run length and start.