Amazon.com: Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required : Everything Else
Download 265 ringtones, alarms, and notifications from Google's Sounds 2.3 : r/Android
Android 101: Adding your own custom sounds to Android events | Android Central
Test Police siren horn Sound Effect MP3 megaphone Truck Alarm Car Sound song Speaker 200W Tone - YouTube
How to Make Any Video Sound Your Alarm or Ringtone on iPhone for Free (TikTok Sound Alarm) - YouTube
Hamilton Medical AG - In case you are a fan of the unique Hamilton Medical ventilator alarm sound, you can now download it as a ringtone for your phone! For Smartphones (mp3):
Air Raid Siren Ringtone by Developer Sonic - (Android Apps) — AppAgg
Amazon.com: 64GB MP3 Player, MP3 Player with Bluetooth 5.2, 2.4" Large Screen, Portable MP3 with Speaker, Metal Body, FM Radio, E-Book, One Key Voice Record, Alarm, Headphones Included : Electronics