Loudspeakers; Smartglasses; Audio headphones; Backpacks especially adapted for holding laptops and notebook computers; Cases adapted for mobile phones; Electric audio playback units with lights and speakers; Electrical plugs and sockets; Flashing safety lights; Flashlights for use in photography; Mobile phone cases featuring rechargeable batteries; Smartwatch straps; Spectacle holders; Stands adapted for laptop computers; Virtual reality headsets