USED fire and smoke detection, alarms, and home keyless entry systems; Medical and personal health appliances such as blood glucometers, heart rate monitors, pacemakers, blood pressure gauges, scales, fitness trackers and watches; Entertainment gadgets, remotes, and designated child-safe toys; Bluetooth beacons and IoT devices such as smart glasses, door bells, light switches, voice controllers, and more; Automotive-related devices including FOB keyless entry and remote-start systems, tire pressure gauges, and remote garage door openers; Small office and business devices such as calculators, payment devices, mobile sensors, metering and monitoring devices, and various facility management system components.