Garmin Varia eRTL615 eBike Rear Radar & Taillight — 24 GHz, Battery-Free

The Garmin Varia eRTL615 is a compact, battery-free rear-facing radar and taillight designed for compatible eBikes (requires compatible Garmin eBike cable; sold separately). Its 24 GHz radar detects vehicles approaching from behind up to 150 yards (140 meters) and can relay alerts to select Garmin wearables, Edge bike computers or the Varia app on your compatible smartphone. The taillight boosts daytime visibility up to 1 mile away and provides four light modes: solid, peloton mode, night flash or day flash. Sleek, space-saving hardware offers multiple mounting choices with a universal seat rail mount or a rack/pannier mount. Connects using ANT+ technology and BLUETOOTH Low Energy to pair with compatible devices and apps.