Here's the scoop on this product: It only works up to about 8 feet and the line between the headphones and the base has to be a STRAIGHT line on the SAME PLANE. So, for example, I wanted to use this while I was on the treadmill. I had to jimmy up the base onto the top of a corkboard (don't ask) so that it would be in direct line with the height of the headphones when I was on the treadmill. It would not work if the base was even an inch above or below the height of the headphones. I only bought infrared because my modem has had problems with interference from 900mHz phones and I didn't want to take the chance with the headphones. But there has GOT to be better infrared products out there than this. If you can achieve a straight line between the base and headphones (with nothing in between the phone and base), than, yes, the sound is fine.