Garmin Varia RTL515, Cycling Rearview Radar with Tail Light

Rearview radar with tail light provides awareness of vehicles approaching from behind up to 153 yards (140 meters) awayPairs seamlessly with your Edge bike computer and compatible smartphone as well as select Garmin wearables or the radar display unitWhen used with your compatible smartphone, the Varia app provides graphics — plus tone and vibration alerts — that indicate approaching carsWhen used with a compatible smartphone, Varia radar integrates with third-party apps such as Ride with GPS to overlay your maps with rearview radar alertsDaylight visibility up to 1 mile alerts motorists to your presence as soon as possibleCompact vertical design mounts easily to most road-use bicyclesPeloton mode provides a low-intensity light flash that is perfect for cycling in groupsBattery life: up to 16 hours in day flash mode, up to 6 hours in solid mode