Garmin Varia RVR315 Radar Tail Light Monitor

Warns of vehicles approaching from behind up to 140 meters. Improved detection of vehicles as they slow behind you. Allows cyclists to get the full Varia Radar experience via their smartphone without the need for a head unit. When used with compatible smartphone, Varia radar integrates with 3rd partyapps such as Ride with GPS to overlay your maps with rearview radar alerts. Pairs seamlessly with your Edge bike computer and compatible smartphone as well as select Garmin wearables or the radar display unit With a new additional shim Varia can now be mounted to D-shaped, aero and round seat posts Battery life : Up to 7 hours Specifications: Dimensions : 40 x 72 x 20 mm Weight : 51g Battery life : Up to 7 hours Connectivity : ANT + , Bluetooth wireless technology RDU, Edge and Varia App compatible Whats in the box : RVR315, mounting hardware, USB cable, documentation