Premium Quality: This 100% brand new bicycle horn is made of high quality silicone material, which is durable and sturdy. It is not easy to damage, reliable quality and long service life. Mode Changeable: Press the horn for 3 seconds to change the horn sound mode. And the bike handlebar electric horn is built-in replaceable cell battery, which can ring 700000 times. 90 Decibels: The 90 decibel electric bike horn, which has clear and loud sound effect, enough to catch riders draw attention to cars and pedestrians. With silicone shell, which is elastic and soft and will not damage the handlebar. Universal Fitment: The bicycle handlebar electric horn with rubber band, easy to install and suitable for all diameter handlebars, convenient to use. Compact & Lightweight: The bike handlebar alarm electric horn is lightweight and compact. There are 4 different colors available. Size(Length*Width): Approx. 10*3cm/3.9*1.2inch