RT-9 Touchscreen GPS Tablet9" Ruggedized Android Touchscreen Tablet w/GPS. Full GPS capability and Navionics Map Chip compatibility. Expandable to accept both sonar andunderwater camera modules.Features:MarCum enters the world of GPS in grand fashion! The RT-9 displayfeatures Full 3D Navionics; Mapping compatibility with access to the sensational Navionics;+ CommunityBuilt on the Android Platform, the Touchscreen tablet offers the ultimate in portability. Internal power for handheld operation, the unit also runs Android apps, movies and gamesModular concept allows users to build their own system. With three data ports, the user can start with MarCum's Ice Sonar, then add an Open Water Sonar or Camera Module laterWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.