I posted a question about it here and here but didnt get any replies. I tried many Google searches myself but it seems impossible to find online.

Have you thought about the Megalert Megahorn? Read a lot of positive comment on that product and it's also in use with several police bike units in the US. It also has a remote switch. I'm a former Airzound horn user aswell but found it to cumbersome and had to take it on and off the bike everytime I parked.



http://www.comforthouse.com/comfort/bikehorns.html
https://shop.maine-ecommerce.com/bik...products_id=78
https://shop.sunrisecyclery.com/item/75/