The clip runs for about 19 seconds, giving the repeating pulse enough time to build without requiring a long edit. Download the MP3 for offline playback, then trim the ending only if your reveal lands earlier. It can also serve as a ringtone or notification tone, although a shorter cut is usually easier for alerts. When placing it under speech, lower the music so the deep tones do not mask voices. For a sharper final beat, follow the build with a dramatic Dun Dun Dun.