Burglar alarms; Camcorders; Cameras; Chronographs for use as specialized time recording apparatuses; Coaxial cables; Computer hardware for communicating audio, video and data between computers via a global computer network, wide-area computer networks, and peer-to-peer computer networks; Egg timers; Electric buzzers; Electric door bells; Electric locks; Electric relays; Electrical pickups for use with musical instruments; Electronic personal emergency response system consisting of a device worn on the body with a button that users push to notify others in the event of an emergency, and a remote unit that dials out on the telephone for help; Fiber optic cables; Fire alarms; Hourglasses; Magnifying peepholes for doors; Optical apparatus and instruments, namely, optical ports for underwater photography, dome ports for underwater photography, wet diopters, adapter lenses for underwater photography; Optical lenses; Radio pagers; Remote controls for radios, televisions, stereos; Sirens; Smoke detectors; Theft alarms; Time recording apparatus; Transponders; Video-telephones; Video baby monitors; Video recorders; Video screens; Warning bells; Sound alarms; Whistle alarms