This wireless remote control system kit allows you to control devices through walls, cabinets and other obstacles. Thick barriers, metal studs and steel mesh in walls can reduce the signals effectiveness but distances of more than one hundred feet are not uncommon. Compact at less than 2 inches square and made from solid aluminum, you place the IR Sender Unit (TX) near your TV or attach the IR Sender cable to your TV bezel if you want to hide the TX Unit. Your remote’s signal will then be received and transmitted via Radio Frequency (RF) from the TX unit to the RX unit near the device you want to control. Installation Instructions: Step 1- Place the IR Sender (TX) unit and Sender cable in your desired location (ex: TV, Display). Step 2- Place the IR Receiver (RX) unit and IR emitter/receiver cable on the device you want to control. (ie: Cable/Sat Box, DVD player, A/V Receiver). The emitter bud should be placed directly on the IR sensor of the device you are trying to control. Step 3- Plug the IR Sender (TX) cable into the “Ext IR IN” jack on the TX unit and plug the IR emitter/receiver cable into the “Ext IR Out” jack of the emitter RX unit. Step 4- Connect the USB power supply cable to each unit and then either plug the USB cables into a USB port on your devices or into the port on a 110v adapter (not included). Additional devices can be controlled, up to 4, by using a 4 bud emitter RX cable available from Inteset. However, control of multiple devices can reduce the signal range. Step 5-Pair the units using the Lock ID buttons on both units. Press and hold the Lock ID button on the TX unit first until it blinks then press the Lock ID button on the RX unit until it blinks. Contact us at: universalremotes.net