Great review on Amazon of the Sennheiser RS 160 wireless headphones that use Kleer technology. When you use these wireless headphones, you listen to uncompressed, lossless, CD-quality, digital stereo audio thanks to Kleer technology (no Bluetooth).
Here's the review: "I bought these not expecting much and was utterly blown away by the sound quality. The KLEER technology they use results in audiophile grade sound without any of the noise or interference I have had with previous wireless units. I have used them constantly for television and critical listening to music (I'm a musician) for over a month and the batteries in the phones are still holding up. The batteries in the small transmitter gave way after a week but it was easy to set up the supplied wall wart power. They are especially great for late night TV and listening to music in my condo without disturbing the neighbors. Reception is great even upstairs. The phones design is very comfortable and they are well made. The only disappointment was the lag in transmission made them unusable for playing my guitar. For everything else you don't really notice it. Highly recommended and worth the price!"
And the author has a point: there is just enough of a lag that using them to listen to guitar doesn't work. But they weren't designed for live guitar playing (sorry), they were designed for listening to television and music. Which the author mentions, for everything else, you don't notice the delay.
