Sennheiser  RS-65 Wireless RF Circumaural Headphones with SRS Surround Sound Processor (Black)
...hmmm. No problems with mine.
I bought these phones as an upgrade to the cheap Sony's I had been using for late night viewing. There is no comparison. The RS-65s are a superior product. You have to make sure that your receiver output doesn't saturate the transmitter circuit; I had a cheapo DVD/CD player that did just that, and even Natalie Imbruglia had a Neil Young like distortion. The unit has a very good discriminator, and noise is kept to a minimum. , I can't call these one star phones. The nature of wireless is noise. There is always a tradeoff for convenience...