At 6.9 seconds, the clip is short enough for quick scares but long enough to build pressure. Its muffled pulse usually needs no trimming, though cutting the tail can make a tighter notification. Download the MP3 to keep it available offline, then assign it as a ringtone or notification tone through your device settings. Keep dialogue slightly above the heartbeat when layering audio, since repeated thuds can mask quiet speech. For a stronger payoff, follow it with a FNAF jumpscare scream or a danger alarm.