Vibration For Minelab Equinox 600/800 For The Deaf

[Enulight]

Hello, I'm new here. Has anyone made a vibration for the Minelab Equinox 600/800 metal detector?
I need to do for a deaf person to dive underwater.
I tried with an amplifier with a battery and a vibration motor but it's not perfect yet.

An example in the video: https://youtu.be/iShD8pGeYR8?t=136

[F117]

Something like this:
https://www.treasureproducts.com/vibraphone.html

[Harold in Fla]

I ran two waterproof wires to a waterproof light from the connection where your headphones go and it worked good.