Monthly Archiv: May, 2013

DIY Police style bike horn

Hi. Today I want to introduce another interesting gadget. I’ll start with the fact that I go to work by bike, my way is through a park where a lot of people. So I have long pondered loud bicycle bell. Wandering through the Internet on the resource i found a scheme of the car police style siren. I really liked it and I decided to make it for myself .