Headphones; Mounts for smartphones; Surveillance cameras; Eye glasses; Protective helmets; Wireless receivers and transmitters for portable media players; Projection screens; Multimedia projectors; Electronic collars to train animals; Camera flashes; Cameras; Motion tracking mounts for cameras; Smart rings; Liquid crystal displays; Electric sockets; Data cables; Battery chargers for cellular telephones; Protective films adapted for smartphones; Cell phone cases; Mousepads