At just over nine seconds, this clip gives the repeating bell enough time to establish a class-change moment. Download the MP3 to keep it available offline, then trim the ending only if your edit needs a quicker cutoff. The full version can work as a ringtone, while a shorter section is better suited to a notification tone. Its sharp repetitions can compete with voices, so reduce the level when dialogue continues. For a lighter follow-up alert, pair it with a bell ding rather than stacking another long ring.