The ROCKBROS Electric Bike Horn is a compact safety accessory designed to alert pedestrians and drivers with a loud 120 dB signal. Its trumpet-shaped housing is crafted from a blend of ABS and PC, keeping the device lightweight at just 34 g so it doesn't add unnecessary bulk to your handlebars. Operating with a simple single-click activation, the horn runs on two replaceable CR2032 batteries. An IPX4 rating ensures it remains functional during light rain or splashes, making it a reliable companion for various weather conditions. You can easily attach it to mountain bikes, road bikes, e-bikes, scooters, or children's bicycles using the included elastic rubber straps, which allow for a secure, tool-free installation.