The Garmin Varia RTL515 Radar Tail Light delivers visual and sound warnings for vehicles approaching from the rear, covering a distance of up to 153 yards. It easily connects with compatible Edge bike computers and smartphones. Through the Varia app, cyclists gain enhanced awareness via position and speed notifications. In contrast, compatibility with third-party apps such as Ride with GPS improves user experience. Featuring visibility in daylight for up to 1 mile and a sleek design, the Garmin Varia RTL515 ensures cyclists feel secure and informed.