161 ComboThe high performance 161 all-in-one Combo with high resolution monochrome display GPS Chartplotting with the built-in UniMap and compact size makes an ideal upgrade to your old factory or dealer installed model.Key Features: Full featured fishhfinder and GPS with built-in maps puts you on top of the hotspots Internal 16 channel WAAS GPS receiver with omni-directional antenna for higher performance Built-in 4 nautical mile resolution Uni Map; of USA inland lakes rivers and coastal areas Affordable compact fishfinder reveals bottom structure and fish. High contrast 320V x 240H 4" FTSN display Precision 20 & 176; Single Beam sonar optimized for definition and coverage 1200 Watts peak-to-peak (150 Watts RMS) power output Reliable performance from shallow to 600 feet Water temperature included speed capable Tilt & amp; swivel quick disconnect mount system or optional in-dash mount Additional Features:Big performance with compact design ideal for small spaces Convenient tilt & amp; swivel quick disconnect mount included Optional in-dash mounting easily fits consoles outfitted with a 5 1/8 quot;H x 5 1/4 quot;W mounting space Real Time Sonar; instantly captures the action under the boat. Sonar Echo Enhancement™ reveals the smallest details - even your jig! One-Touch Zoom and Bottom Lock enhance resolution and separate fish from structure Tru Arch; shows actual fish returns or choose selective Fish ID; with target depth Precision 2 " target separation reveals close hanging fish X-Press; Menus access the most important controls with fewer button presses Selectable large digital readout view for easy readability Microdynamic transducer slices through water for reliable readings to 70 MPH Fresh and saltwater options for optimal performance in any environment Adjustable 2x 4x 6x and 8x zoom levels Adjustable backlight for night fishing Fully gasketed waterproof construction - they float! One year limited warranty Assembled in the USA Product : HUMMINBIRD 161 GPS FISHFINDER CHARTPLOTTER COMBO TM W/UNIMAP Manufacturer : HUMMINBIRD Manufacturer Part No : 406640-1 UPC : 082324030840