Apparatus for recording, transmission, processing and reproduction of sound, images or data; Apparatus for the recording, transmission and reproduction of sound and images; Audio-receivers and video-receivers; Audio equipment for vehicles, namely, loud speakers for automotive audio systems; Automotive testing equipment, namely, handheld diagnostic scanners; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Digital music system that synchronizes digital music files stored on a home unit and a car unit; Digital music systems that synchronizes digital radio files stored on a home unit, a car unit, or portable unit and that may be backed up to an internet depository; Emergency notification system comprised of a data processor and a user input device for connecting the data processor to an emergency response entity through a communication network and allowing audio and data communication between the processor and the entity; Locomotive event recorders; Navigation apparatus for vehicles in the nature of on-board computers; Telecommunications and data networking hardware, namely, devices for transporting and aggregating voice, data, and video communications across multiple network infrastructures and communications protocols; Wireless communication devices for voice, data or image transmission; Wireless high definition multimedia interface adapters; Wireless transmitters and receivers