Humminbird 409800-1 Helix 7 DI Fishfinder with Down Imaging Sonar The built-in quick-release gimbal mount makes angle adjustments and removal easy Experience jaw-dropping 480x800 resolution and 1500 nit brightness, delivering a clear and precise picture of fish and fish-holding structure The ultra-wide 16:9 ratio gives you ample room to view two screens side-by-side, making fishing and navigating easier