1.????IR remote control cable extends the signal to a video source like a Blu-ray player so it can be controlled from your TV; Blue LED in IR Receiver bulb verifies the signal transmission. 2.????Home theater accessories repeats the IR signal to a DVD player, STB box, Receiver or other A/V source with an IR sensor; Route the infrared remote control extender cable out of sight with a wall mounted TV; Install the IR Transmitter end in a concealed equipment closet to hide a CATV box and control it remotely. 3.????Simple installation of this lightweight IR cable; Locate the IR near the source sensor to repeat the signal to the source; Place the IR Receiver in a convenient location with line of sight of your hand-held remote; IR Tx and Rx cables have adhesive circles on the back for mounting. 4.????USB powered IR extension cable has an integrated Y-cable to receive 5V USB power; USB cable on the IR remote extender cable connects to a TV USB power port or to a USB wall charger 5.????Universal compatibility of IR extender cable with most A/V equipment with infrared sensors (not RF); 30 degree IR Receiver angle provides plenty of leeway to get the right angle with your remote.