Water Bottle Bicycle Air Horn - Very Loud

The Delta "Air Zound" Horn is a clever and extremely loud bicycle horn. Pump up the horn using your standard bicycle pump. Adjust the volume of the horn using a dial. Mount the trigger on your handlebars or top tube. This horn commands attention in congested city traffic and crowded paths. Bicycle couriers and commuters alike will appreciate how incredibly loud this horn is. Car drivers can hear the Delta Air Zound Bicycle horn even with windows rolled up. We cannot make it clear enough how loud this horn is.