Lowrance XOG 3.5-Inch Crossover GPS Navigator Rugged and Waterproof GPS Navigation System 3.5 in Diagonal 16bit Color Display / 320Hx240V at Resolution Turn by Turn NAVTEQ Street Navigation w/Voice and Visual Guidance Loads of Optional Mapping for Marine and Outdoor Use 1.75 Lbs (WxLxH) 0.75" x 3.25" x 3.75"