3D spectacles; Audio-video receivers; Cabinets for loudspeakers; Cell phone covers; Cell phones; Data synchronization cables; Earphones and headphones; Headphones; Photographic cameras; Portable media players; Power supplies; Rechargeable batteries; Smart watches; Smartglasses; Sound cards; Wearable computer peripherals; Wireless headsets for smartphones; Wireless adapters for computers; Wearable activity trackers