Headsets for cellular or mobile phones; Headsets for mobile telephones; Headsets for telephones; Headsets for use with computers; Headsets for virtual reality games; Hygienic covers adapted for virtual reality headsets; Hygienic covers adapted for virtual reality head-mounted displays; Hygienic pads adapted for virtual reality head-mounted displays; Telephone headsets; Virtual reality headsets; Wireless headsets for smartphones; Wireless cellular phone headsets