Good product but could be better
"I have 2 of these, and love them when they work. Over time, the rubber where the valve exits the plastic part gets deteriorated and starts leaking. Not the hose/tubing. The other has the clamp stripped of the notch that holds it down, so I have to use a wore to hold it down. Not pretty but works. In cold temperatures, if it works, you will have to refill more often in my experience. Other than that, when it works it works awesome. I ride in the street/traffic and this thing has saved me a couple of times, one with a semi truck pulling out without even looking. One press on the button and the semi visibly stomped on the breaks, as the Airzound actually sounds like a semi horn. I haven't seen the newer versions, hope they addressed the deteriorating parts."