Camera plays a sound (eg. siren) on motion or on demand

That’s what I’ve done on my Android phone using the “Tasker” app. Tasker can intercept Wyze notifications (on the phone). This allows me to create custom alerts in Tasker. For instance, I have an alert that consists of three loud beeps, followed by spoken "Montion detected in… ", followed by a “Red” colored pop-up alert (on the phone screen) that shows the text from the Wyze notification, when inside motion is detected.

It was extra work to set it up (in Tasker), but it’s cool and was the best option I had since my version of Android (v6.0.1) does not allow the Wyze notification sound to be changed.