Electronic devices for animal locating and tracking programmed to use global positioning systems (GPS) and cellular communications; Electronic devices for detecting and locating lost articles, people, pets using radio frequency, global positioning systems, cellular communication networks; Electronic devices for locating and tracking lost articles, people, pets using radio frequency, global positioning systems, cellular communication networks; Electronic devices used to locate lost articles employing the global positioning system or cellular communication networks; Electronic devices used to locate lost objects employing radio frequency; Electronic location and immobilization devices installed after purchase for use with vehicles; Electronic navigational and positioning apparatus and instruments; Electronic transmitters and receivers used to locate lost children; Global positioning system; Global positioning system (GPS); Global positioning system (GPS) apparatus; Global positioning system receivers; GPS receivers; GPS tracking devices; Navigation apparatus for vehicles in the nature of on-board computers; Satellite navigational system, namely, a global positioning system (GPS); Transmitter and receiver used to locate lost pets; Vehicle locating, tracking and security system comprised of an antenna and radio transmitter to be placed in a vehicle; Vehicle locator and recovery device programmed to use global positioning systems (GPS) and cellular telecommunications; Wearable global positioning system (GPS)