... selector 2.This selector can 4 road AV input, AV output way 3.select one way in many input ways to ... selector This infrared remote control 4 way AV selector, this is designed to select one way in many input ways to ... : DVD as one way input, VCD as one way inuput, digital-top-box as one way input, monitor the vidicon ... the switch), and then it can be selected one way as output freely to watch. It can be ...