RV 770 LMT-S is our advanced navigator for your roving RV lifestyle. It allows you to enjoy the freedom of the open road while traveling with helpful guidance features. RV 770 LMT-S is a large, easy-to-view GPS navigator with a 6.95” edge-to-edge touchscreen display that fits prominently in an RV or your car. It provides road warnings and custom routing¹ based on the size and weight specifications of your RV or towable trailer. It even includes a directory to RV Parks & Services. It also features Easy Route Shaping, Elevation Profile information and millions more new and popular places to visit and explore, thanks to TripAdvisor® and Foursquare®.