Batteries and battery chargers; Cell phone cases; Computer keyboards; Computer peripherals in the nature of trackballs; Computers and computer peripherals; Converters for electric plugs; Electric cables and wires; Electronic docking stations; Holders adapted for mobile telephones and smartphones; Hygienic covers adapted for virtual reality head-mounted displays; Mechanical keyboards; Radio receivers and transmitters; Virtual reality headsets; Wireless computer mice; Wireless transmitters and ...