Do not stand in front and test it! These babies are loud. Instructions pretty straight forward. I think the hardware is stainless but not sure. For the price, I am happy. Even double the price and I'd still be happy!

Not exactly the tone of a train , but it's loud !

I already I knew where I wanted to mount it but making the bracket line up with my location of choice was a little tricky. Mostly the trick was that I needed to make the wires longer so that I could Mount the relay in a reasonable location where those wires needed to go and get everything back to where it was supposed to be so that I could Mount this miniature sized compressor in about the only place it would fit on my motorcycle under my seat. Getting it to bolt down was mechanically difficult because the space was so small but such is the nature of motorcycles. The horn itself is nice and loud but the sound is not consistent because the compressor is so small and it has no reservoir of air. So the first time I hit the button it comes out loud and high-pitched and squeaky but the second time it comes out with its full voice. Usually it doesn't take more than one or two presses of that horn to let the 10 wheeler dump truck know that he too darn close to me and my motorcycle. I've even used it to avoid an accident between two cars that were in front of me when I was not actually necessarily endanger myself unless those two cars actually did hit each other. Overall I'm happy because of the confines of a motorcycle I cannot really have a surplus air tank system so this setup works. Not exactly perfect the first time I hit the button every single time but it's definitely still good enough for what I need it to do

This horn is great! It is loud, but not obnoxious. The only thing is that the wires are really short. Other than that everything is great! The relay worked the first time after I got the ground connected well. It will mount just about anywhere and it looks great. It's a blast to hit the horn!

I installed this on a Dewalt drill. It was pretty easy to put together. I used a soldering iron to connect the wires and a dremel tool to sand down some of the inside so the motor would fit. The battery works for hours. The horn is great for sporting events, but some will think it's to loud. If your looking to have a little fun I highly recommend.