An excellent addition to a home theatre
I bought these so that I could watch television late into the night as my wife sleeps. They are very well made and the battery lasts for quite a while. I like how you can swap the batteries out with AAs if they run low so you are never unable to use them. Like others have mentioned, the range is only about 33 feet and within an IR conical profile in front of the transmitter. This is to be expected because the information is transmitted via a wide “beam.” I find this advantageous because I have a Home Theatre PC, a Wii, Roku box, and a PS3 that could be used with this and I did not want to encounter major interference with sound using any of those products. Because this is not based on a transmitted “radio” signal, there is no chance of interference. While I like the concept of the optical in, its just not convenient to keep switching back and forth between products that do not have that option so I just use the A/V jacks all of the time and quality of sound is great. One tip I would give to anyone to reduce any audible hiss they may encounter is to leave the volume for the headphones waaaaaay down and then just use your receiver to control the sound level. You will hear almost no hiss and the tiny fraction you do hear will be drowned out by your sound anyway. The sound is comparable to a really good pair of headphones but is admittedly not as good as a surround sound system. But hey, its a lot better to crank the sound up on these at night while my wife sleeps then it is to turn the sound way down so that I do not disturb her and not be able to hear anything.

Link: http://astore.amazon.com/sony.wireless.headphones-20