The problem with air horns is that they run out of air quickly, making it difficult for you to sustain an eardrum-destroying level of horn blasting for very long. With this EcoBlast, you can keep refilling your air horn with a pump as much as you want, getting you back into the loud-noise-making action as soon as possible. All this for only $30! How can you say no?

Things You Never Knew Existed via Gadget Lab