Wireless transceiver radio; Wireless high definition multimedia interface adapters; Wireless communication devices for voice, data or image transmission; Radio-frequency antennas; Radio-frequency transmitters; Protective cases for audio equipment in the nature of speakers, headphones and audio mixers; Printer cables; Power wires; Musical instrument digital interface controllers being audio interfaces; Loud speakers; Lightning arresters; Interfaces and peripheral devices for computers; Telecommunications cables; USB hubs; Safety equipment, namely, a lifeline system for horizontal or vertical movement to which a worker is attached for protection against fall hazards, composed of composed of line tension indicator, turnbuckle, bars, anchors, harnesses, lanyards, cables, anchorage connectors, carabiners, lifelines, stanchions and shock absorber; Receivers for telephone, audio and video; Electronic interconnecters for audio and video signals; Electric wire and cable; Electrical adapters; High definition multimedia interface splitters