The ROCKBROS 24720005001 is a rear bicycle light designed to keep you visible during road cycling, mountain biking, or touring. It uses high-intensity LEDs to provide several lighting options, including constant, flash, and pulsation modes, which you can switch between using a wireless ergonomic remote mounted directly on your handlebars. This setup means you can change your visibility settings without having to reach back to the seat post. Built for reliability in various environments, the light features a sealed housing that protects the internal components from water and dust. It is powered by an integrated rechargeable battery that supports USB rapid charging, ensuring the device is ready for your next trip. The system is held in place by durable plastics and elastic supports, and the package includes the light, the wireless remote, a charging cable, and the necessary mounting hardware.