Hello, in my prior comments and advise I give to others I recommend that if you want to gag a sub you should give them a non verbal way to safeword, an easy one is keys -- drop the keys equals "red light!!" I know, pretty standard.

There are instances where this isn't enough. For example, tie a sub to the bed and walk away, for abandonment or maybe to just get something, and she drops she keys, they might not make a sound because they land on the bed or a carpet or the sound may just be too soft.

I've recommended a button that makes a sound, or a buzzer of some kind. Unfortunately I don't have a source for where to buy a device like this. I remember there was a personal alarm my cousin had back in the 90s, a small black box that if contact was broken, it'd sound a horrible alarm. That might be a bit too loud for my vanilla neighbors, but the idea is solid.

Does anyone know of a device like this and where I could buy one?

Thank you in advance!

Edit: please know that I wouldn't endanger a sub or recommend doing so by leaving him/her truly alone.

Update: I found this personal alarm, it's maybe a bit too loud, but it has a pull tab or a switch to activate the alarm. Maybe some duct tape to reduce the sound from 140db to something non-damaging, but pretty close. https://www.amazon.com/dp/B07VRC47SD/

Update 2: I got the cheap dog clickers, and while there's some desires still unfulfilled this is about the best it can get atm. They're light, cheap, vanilla friendly, and the sound can easily be identified. https://streamable.com/nwo3oh

Still interested in suggestions