[joncp]

I’d love to find a way to do something similar with neighboring dogs.

[Biganon]

Ultrasound whistle?

Sounds a bit cruel though, I dunno how it makes them feel

[wingworks]

Usualy doesn't work. Needs a specific type of dog, and the right device. Most of the ones sold online are scams.

[sejje]

It makes them bark more, in my experience.

[kgwxd]

loud thunder sound using a big sub woofer?