Audio amplifiers; Audio cables; Audio circuit boards; Audio headphones; Audio interfaces; Audio mixers; Audio recorders; Audio speakers; Audio-video receivers; 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 multimeters; Digital phones; Digital plotters; Digital signage; 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; MP3 players; MP4 players; USB cables; USB charging ports; USB computer security key; Blank USB cards; Cell phone battery chargers; Compact disc players; Digital audio players; Digital audio tape players; Fax devices; Lens filters; Micro USB cables; Micro USB ports; Microscope illuminating devices; Mobile hotspot devices; Protective carrying cases for portable music players; 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; Wireless headsets for smartphones; Wireless cellular phone headsets