The program bases on GPS data and displays the speed analog and digital. Additionally more infomations will be displayed. There is a compass and a stop watch built in. You can set different modes: Bicycle, Moped, Car, Airplane, Sailboat. The Unit can be set for Kph, mph or knots (kn). You can use it for different vehicles. Technical Data: - View Mode: Bicycle, Moped, Car, Airplane - Display: GPS available, Longitude, Latitude, Altitude, GPS time - Max-speeds: 23, 70, 210, 420 - Analog, digital - Saves automatically the last display - Unit: km/h, mp/h or kn (Knots) - Stop watch: Reset, Start, Stop - Trip distance - Maximum speed - Compass: based on GPS data or compass-sensor - Point of the Compass in N, NW, W, SW, S, SE, E, NE and in ° - Device does not turn off while the program is running - New: Map with your position as single window Bicycle: - You need a bike mount - Start the program - Set under Extras > Settings e.g. km/h and the Compass-sensor active Car: - You need a car mount and a power adaptor cable (12V > 5V iPhone), it has to be Apple certified (otherwise it will not charge) - Set View Mode > Car - Do not operate the program while driving! Small Plane: - Set Display > Aircraft Sailboats and small ships: - Set Display > Bicycle or Sailboat - Set Extras > Settings > kn (Knots) Requirements: - OS 8.0 or higher - Bike mount or Car mount - AC-Adaptor, Car recharger cable or power-pack (additional accu)