It didn't last long! Is it a "consumable item"?
After 5 years replacement was due! One had completely given up the ghost and the second hummed only miserably! Due to lack of time and the existing mounting situation, ie holder front and rear of the identical double horn available, I have decided to give it a try again. Here I rate the identical and absolutely identical predecessor - and every 5 years the horn at the car exchange is not synonymous! The horns are and were mounted by default - slight downward gradient. I've practically put the new horns only on the existing brackets or pushed into the rubber, connected and lo and behold, they are blasting again! Were the stickers on the top, which looked quite brittle due to UV radiation and weather, the reason? These seal off the screw of the membrane ...?! Visually they really make a good impression, so if that was the reason for the failure, would be an indictment of these horns!