I bought this product because my home cinema system is behind me, so that the lights do not interfere with vision. I put the transmitter in front of me, at 3.50 m, under the screen, and the receiver on the HC stand behind me ... and it works! It should however be that the receiver is placed at the edge of the cabinet just above the devices. Otherwise, the connection does not pass or wrong. A good surprise, therefore. Only downside, if the transmitter is too close to the subwoofer, it hums every action on remote controls, but hey, simply remove the transmitter.