Audio amplifiers; Audio cables; Audio headphones; Audio interfaces; Audio mixers; Audio recorders; Audio speakers; Batteries and battery chargers; Battery chargers; Battery chargers for laptop computers; Battery chargers for mobile phones; Battery chargers for tablet computers; Battery chargers for use with telephones; Cable connectors; Cable jump leads; Cable locators; Cable modems; Cable television converters; Cable television transmitters; Camera filters; Chargers for batteries; Digital cameras; Digital film scanners; Digital multimeters; Digital phones; Digital photo image converters; Digital plotters; Digital signage; Digital signage monitors; Digital telephones; Electric charging cables; Headsets for cellular or mobile phones; Headsets for mobile telephones; Headsets for telephones; Headsets for use with computers; Headsets for virtual reality games; USB cables; USB cables for cellphones; USB card readers; USB charging ports; USB computer security key; USB hubs; Blank USB cards; Cell phone battery chargers; Digital audio players; Digital audio tape players; Electrical controlling devices; Engine cut-out devices; Fax devices; Filters for optical devices; Lens filters; Micro USB cables; Micro USB ports; Microscope illuminating devices; Mobile hotspot devices; Optical frequency metrology devices; Semiconductor devices; Solar-powered battery chargers; Telephone call router, for home and office touchtone phones, for international and long distance calls made from various telephony platforms including VoIP platform without the requirement for internet; Telephone call routers for long distance calls made through PSTN and VoIP platforms from any touchtone phone without a requirement for internet access; Telephone headsets; Track ball input devices; Wire diameter measuring devices; Wireless headsets for smartphones; Wireless cellular phone headsets