If you want to stop it, tap it again. The timer can be set to “countdown” or “count up”. When "countdown" is selected, a sound can be played when the timer reaches zero. 2. Whistle Press the "Short", "Long", or “Twice” button to sound the whistle. If the whistle icon is held down, the whistle sound will play the entire time (up to approximately 30 seconds). 3. Penalty cards Tap a card to display it in full screen. In the initial display, "yellow card" and "red card" are shown, but other color cards can be displayed in the settings.
Show Less
