At 21.3 seconds, this file gives you enough room to use the opening burst or a longer warning sequence. Save the MP3 for offline playback, and trim a shorter section if your editor or soundboard needs a quick hit. It can be assigned as a ringtone, though a brief excerpt is better suited to notification alerts. Keep its level below speech because the piercing tones can mask dialogue. For a less official-sounding transition, pair it with a sudden suspense sound instead.