Radios; clock radios; car stereos; portable stereo systems; personal stereo systems; headphones; earphones; radio frequency receivers; audio amplifiers; compact disc players; MP3 players; magnetic tape sound recording and reproduction machines; wired and wireless microphones; loudspeakers for sound reproduction; power transformers; sound mixers; televisions; video cameras combined with video recorders; lenses for video cameras; video disc players; video recording and reproduction machines; au...