batteries; battery chargers and switches; inverters; marine electrical apparatus and parts for marine outboard motor units and marine engines, namely, cathodic corrosion protection devices, trim position indicators, engine instruments, electrical switches, thermostats, pedometers, and keyless ignition switches; Computer hardware and software for position control for a marine vessel; Anodes; Pre-recorded DVDs featuring educational and instructional information for marine engine and boat maintenance; Nautical piloting systems and computer operating programs for controlling marine engines and marine stern drives, namely, joysticks, control pads, electronic compasses, global positioning satellite computer software, yaw control computer software, waypoint tracking computer software, computer software for controlling and operating marine engines and marine stern drives; Remote controls; Marine propulsion control equipment, namely, microprocessor operated engine controllers, throttle controllers, and communication buses; Information display devices, namely electric luminescent display, including functional buttons, for use in boats; watercraft speed control systems, namely, computer controllers with operating software for the launch and cruise of a watercraft; Information display devices, namely electric luminescent display, including functional buttons, for use in boats; downloadable computer application software for mobile phones, portable media players, and handheld computers, namely, software for use as a wireless emergency switch for marine engine shutoff, namely, engine cut-out device; wearable controller device for use as a wireless emergency switch for marine engine shutoff; Computer application software for use on mobile devices, including mobile phones, portable media players and handheld computers, namely, computer application software for monitoring and communicating information related to marine propulsion devices, including diagnostic information, fuel usage, water temperature, oil pressure, water pressure, battery voltage, RPM, usage time, maintenance schedule, navigational information, weather forecasts, and information regarding marine dealerships and point-of-interest information. Computer hardware for marine propulsion devices, namely, computer controllers for monitoring and communicating information related to marine propulsion devices, including diagnostic information, fuel usage, water temperature, oil pressure, water pressure, battery voltage, RPM, usage time, maintenance schedule, navigational information, weather forecasts, and information regarding marine dealerships and point-of-interest information; Electrical digital control and monitoring system, comprising control stations, interface modules, fuse boxes, frames, controller cards, connectors, electronic displays, and panels for marine, recreational, and specialty vehicles; electronic devices, namely, energy meters for tracking and monitoring energy usage; electronic devices, namely, circuit meters for tracking and monitoring the status of electrical circuits; electronic apparatus, namely, signal interfaces for connecting electronic sensors, alarms and switches, output interfaces for electronic circuit control and protection, and switch control interfaces; electronic display interfaces; touch screens; an electric power management system for boats consisting of electric switches and a downloadable and recorded graphical user interface that allows users to monitor and control onboard batteries and systems charging or drawing power from onboard batteries