Installation steps: 1. Connect your devices with this splitter cable2. Turn the signal source on or choose HDMI signal source3. Turn the first display on first and wait till it works properly4. Then turn the second display on and enjoy it Specifications: Color: BlackLength: 11.8 inch (30 cm) Weight: 52.00g Function:Support Two TVs at The Same Time, Signal One in, Two Out , 24k gold-plated connector.Features:With this HDMI signal splitter,you can connecting one HDMI compatible device (Xbox, Blue ray, DVD players, PS3) to two visual output devises (such as, HDTV, Monitor, etc.).This HDMI Splitter Adapter Cable can transmits the video & audio signal from one HDMI compatible device (such as, a Blu-ray player, etc.) to one of two visual output devices (such as, HDTV, Monitor, etc.) that are plugged into it.If you have two HDTV in two different separate rooms, and you want to let the two different HDTV show the same image. After connected, you just need to turn one TV off and turn the other TV on, this HDMI splitter adapter cable can allow you watch the same image of TV in two rooms.Note:Only 1 output device should be active at any time unless both of the 2 display devices (HDTV) share the same size and model. And both display devices will show the images After connected.Only for you to show images on 2 TVs / monitors from 1 device, NOT for you to connect 2 devices to 1 TVDoes NOT support any TV box / cable box.