Acoustic alarms; Carbon monoxide detectors; Converters for electric plugs; Decorative covers for smoke detectors; Device for testing the function and effectiveness of smoke detectors, carbon monoxide detectors and heat detectors featuring an aerosol spray; Electric audio playback units with lights and speakers; Electronic door alarms; Electronic transmitters and receivers used to locate lost children; Personal stereos; Pet collar accessories, namely, signaling bells; Power switches; Security ...