We bought this horn Birthday to match the wheel of our son. The wheel was a hit but the horn was the greatest. The sound is indeed Haarsträubend, but that the goal is reached, everyone turns around and know that our little one comes with its running wheels. The horn is hot loved in any case and is used properly. The workmanship is good and the installation very easy. Turning happening on matching Puky bike nothing. She sits perfectly on the wheel and looks great. Would I buy again at any time.