The clip runs about ten seconds, giving you room to trigger the whistle and stop it early if needed. Download the MP3 once for offline playback, then assign the file through your phone’s ringtone or notification settings. Its thin, high-pitched tone can disappear on small speakers or feel harsh when boosted, so test it at moderate volume before layering speech or music. For a comic follow-up, queue a Vine Boom after the whistle; for a fake interruption, place a Censor Beep immediately before it.