Protective cases for smartphones; Protective cases for tablet computers; USB (universal serial bus) hardware; Control valves for regulating the flow of gases and liquids; Heat sinks for use in electronic components; Protective covers and cases for cell phones; Protective films adapted for smartphones; Electric switches; Mobile phone chargers; Rechargeable batteries; Head-clip cell phone holders; Wireless chargers; Electric charging cables; Mobile phone screen protectors; Earphones and headphones