Audio amplifiers; Blank USB cards; Cabinets for loudspeakers; Cases for smartphones; Cell phone battery chargers; Cell phone battery chargers for use in vehicles; Earphones; Electrical plugs and sockets; Head-mounted video displays; Headphones; Microphones; Portable media players; Protective films adapted for smartphones; Smart rings; Smartglasses; Smartphone mounts; Smartwatches; Sound effect pedals for musical instruments; USB cables for cellphones; Wireless headsets for smartphones