ROCKBROS Bicycle Taillight Smart Brake Sensing 5 Modes Waterproof Type-C Charging Cycling Accessories

Features:Sensitive sensing,bake light stays on about 2 seconds to alert the vehivles behind,safer for ridingFive light modes,one-click to swith modes and double-click for manual/smart mode switchingAmart light sensitivity,automatically detedt ambient light,turn on the light when entering a tunnel or at night and go to sleep after 2 minutes of inactivityAerodynamic design,reduce wind resistance during cycling and improve cycling speedIPX6 waterproof,no fear of the adverse weather(do not immerse it in ater for a long time)Type-C charging,four group of battery indicator lights,can directly see the charging conditionsTwo installation methods,can be installed according to your need