This product is used to transmit audio/video signal. It can transmit audio/video signals from camera, amplifier, VCD, DVD and VCR to multiple TVs or speakers by using audio/ AV video. Gold-plated connectors, anti-oxidation, ensure minimal signal loss, high transfer speed, durable and long-lasting use. Internal metal pins are tinned, which is easy to solder, stronger and more stable than screw terminal connections, and not easy to loosen. There is a inchtransparent insulating tubeinch in the cover to prevent the electrical conduction, improve sound quality and be noiseless. The RCA jack for computers, projectors, speakers, microphones, camera, multimedia and CCTV or more.