Filters for radio interference suppression; Infrared detectors; Metal detectors; Radio receivers; Radio transceivers; Smoke detectors

[ Baby monitors; Burglar alarms; Connections for electric lines; Data synchronization cables; Global positioning system (GPS) apparatus; GPS tracking devices; Integrated circuits; Metal detectors for industrial or military purposes [; Modems; Smoke alarms; Smoke detectors; Transponders; USB hubs; Wireless routers; Data cables; Magnifying peepholes for doors ]