SkyCaddie Linx GT Tour Edition Preloaded with 35000 trueground course maps with accurate distances to bunkers, carries, water, creeks, end of frwy and more Powered by the Linx GT use your smart phone with the SkyCaddie Mobile gps app to have an eagle's eye view of the entire hole Auto shot tracking works in the background to track the location and distance of each shot automatically without any intervention while you play SkyGolf 360, all your auto shot tracking data is wirelessly uploaded to your personal performance locker to analyze your game and learn your shot tendencies Smartphone notification alerts, digital scorecard, statistic tracking, odometer and sunlight readable display with reverse polarity background