Regarding Horns

[BestBear]

I'm new to ETS

In the upgrade shop, there are horns available to be purchased. what do they do? Do they make the horn louder?

I read somewhere that there's different tones for different horns, how could I configure my horns to do so?
- Is it possible to do two tone horns or even more toned horns? so if i press a button horn A with tone A will play and if I press another button horn B with tone B will play.

In keybinds, default: horn is H and airhorn is N, however N plays nothing, what is the "airhorn" purpose or how do I activate it?


Thanks!

[Hypertext Eye]

Horn (H) is the normal truck horn. Airhorn (N) is the horns you buy in the upgrade shop. They all play at the same time when you press the key.