The ROCKBROS CB1709RD is an electronic bicycle horn designed to keep you noticed and safe on the road. It delivers a sound intensity of 90 dB and offers three different sound modes, allowing you to choose the right alert depending on your surroundings. Wrapped in a soft-touch, flexible silicone material, the device features a compact ergonomic design that is gentle on your handlebars and resistant to weather. It attaches easily to various handlebar diameters, including those on mountain bikes, road bikes, and electric scooters, using a flexible silicone strap that prevents scratches during use. This electronic bell is powered by batteries, providing a reliable and loud alternative to traditional mechanical bells for any urban or trail rider.