GARMIN VARIA RTL515 REARVIEW RADAR WITH TAILLIGHT

Product details
Rearview radar alerts riders of vehicles approaching from behind up to 140 meters away
Multiple modes offer daytime visibility up to 1 mile, or a lower-intensity flash when riding in a group
Seamlessly pairs with Garmin Edge computers, smartphones using ANT+ or Bluetooth, and other Garmin devices
Varia smartphone app provides graphics, tone and vibration alerts of approaching vehicles
Integrates with apps such as Ride with GPS to overlay maps with radar alerts
Sleek and compact vertical design mounts easily to round seat posts
Battery life lasts up to 16 hours in day flash mode, or 6 hours in solid mode