Use Transmitr for wireless on/off, battery status, indicators and mode selection;65 lumens provide visibility from over 2 km, day or night;Be seen with balanced optics designed for 270 degree visibility near and far;Two daytime visibility modes, two night modes and indicator capability;Day modes: 65 lm flash-5.75 hrs, 35 lm all-day-10 hrs, 25 lm steady-4.5 hrs;Night modes: 65 lm flash-23 hrs, 5 lm steady-21 hrs;Battery save mode at 5% life helps to ensure a safe ride home with a depleted battery;Includes a Quick Connect bracket and USB charging cable;