telecommunications electronic ports, telephone units, telephone answering units, C.D.ROMs, cellular switches, wireless switches, public branch exchange (PBX) switches, computers, computer monitors, keyboards, computer harddrivers, computer chips, computer mother boards, radios, televisions, video cassette recorders

Portable Public Address System Consisting of a Speaker, Amplifier, Microphone, Battery Pack, Recharger, Harness, Shoulder Strap, and Microphone Holder