What is the name of the tone that goes off when Find iPhone is used?

can anyone tell me the name of the tone that goes off when you use Find iPhone. In Find iPhone you track a device and hit "Play Sound". What is the name of the sound that happens on the device? This tone is literally the only thing that will wake our daughter at college who has narcolepsy. I know it sounds far fetched but I literally have to find her phone every morning and hit "play sound" for her to wake up. She's tried several tones on the clock alarm app. We've tried table top alarm clocks and we've tried an alarm clock recommended by the Narcolepsy Association. She needs to know the name of this tone so she could use it as her clock alarm. Or we could download it. Thank you.