Radio transmitters and receivers; Wearable computer hardware in the nature of smartwatches, fitness trackers in the nature of wearable activity trackers and pedometers, smart jewelry in the nature of smart rings, and head-mounted video displays; Electronic communication devices in the form of tags, RFID labels, asset labels, inventory labels, magnetic clasps, multi-strand clasps, snap-lock clasps, S hook clasps, toggle clasp hooks, tab lock clasps, crocodile clips, and alligator clips for det...