Headphones; Capacitive styluses for touch screen devices; Chargers for smartphones; Cryptocurrency hardware wallets; Protective cases for cell phones; Protective cases for tablet computers; Selfie sticks; Stands adapted for mobile phones; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethe...