No, it can't. It can disturb the speech of some people.

A bit akin to those "drunk glasses" or something. No, they don't actually make you drunk, and this doesn't actually prevent you from speaking. It's just a matter of getting used to slightly weird thing.

When I worked in taxi dispatch I *had" to get used to this because the phone lines would pretty often just have the maon features of this "gun" as a fault of some sort.

It's weird hearing your voice with a tiny delay, but you get used to it.

Edit also it's like 15 years old