Garmin echoMAP Plus 63cv chartplotter has bright sunlight-readable 6-inch combo, includes transducer for Garmin chirp traditional sonar plus chirp ClearVü scanning sonar with transom and trolling motor mounts, preloaded LakeVü HD maps cover 17000+ total lakes / 13000 with 1" contours, built-in Quickdraw contours mapping software instantly creates personalized fishing maps on-screen with 1" contours as you fish, built-in Wi-Fi to pair with the free ActiveCaptain app for access to OneChart, smart notifications, Garmin Quickdraw community data.