radio transmitters, radio receivers, audio and video transmitters, namely, karaoke microphone that contains a computer chip with a list of songs and lyrics that play on a television screen; sound recording and reproduction equipment, namely, audio tape, compact disc and digital music recorders, video tape recorders, amplifiers, players, audio speakers and microphones; sound transmitting devices, namely, wireless microphone; sound reproduction devices, namely, karaoke players; microphones, por...