Video screens; Data processing equipment, namely, couplers; Wireless communication devices for voice, data or image transmission; Wireless communication devices for transmitting images taken by a camera; Telematics apparatus, namely, wireless Internet devices which provide telematic services and have a cellular phone function; Electric power converters; Recording and playing devices for sound and image carriers; Sound transmitting apparatus; Acoustic couplers; Hardware and software adapter for coupling a GPS receiver to the microphone input of a digital camcorder; Vehicle locator and recovery device programmed to use global positioning systems (GPS) and cellular telecommunications; Optical communications systems comprised of optical and electronic hardware and computer software for the transmission of data between two points; Electronic communications systems comprised of computer hardware and software for the transmission of data between two points; Air quality measurement apparatus, namely, particle counters; Lap-counting devices, namely, counters for use during sporting activities; Chronographs for use as specialized time recording apparatuses; Electric cables, wires, conductors and connection fittings therefor; Electric power converters; Electric current switches; Angle gauges; Automotive measuring instruments, namely, water temperature gauges, air fuel/ratio gauges, boost gauges, vacuum gauges and exhaust gas temperature gauges; Length measuring gauges; Interfaces and peripheral devices for computers; Printers for use with computers