Usb chargers for electronic devices that are used for heating tobacco; universal serial bus [usb] hardware; usb adapters; usb chargers; usb hardware; electric power supply units; high-frequency switching power supplies; electrical plugs and sockets; multi-outlet socket blocks; electronic docking stations; electronic docking stations; electronic display units; ac/dc power supplies; battery chargers; battery charge devices; battery chargers for mobile phones; battery chargers for laptop compute...