I buy these as a upgrade from some very nice Sony IR wireless headphone that lack in audio quality and range that be about the same price as these headphone 6 yr ago when I get they . these headphone be a huge sonic upgrade . I love the sound quality , I love that it be rf and I can walk into another room . the stand be fair , the headphone be reasonably comfortable . there be a lineout on the back of the stand so that these headphone can sit between you source and another device -- for I , these be plug into a computer and I have some cheap speaker downstream . it be nice not to have to re-cable or adjust thing to change the sound output . previously I be use a rackmount headphone amp to serve a similar purpose . I also own sennheiser noise cancel headphone and the top-of-the-line hd 800s . I really like Sennheiser headphone . however , where these fall hugely short be usability . first , there be two power button , one on the headphone and one on the stand . this be ridiculous -- the Sony headphone these replace have 0 power button . lift the headphone off the stand should turn on both the stand and the headphone . the user do not should have to do both . the Sony headphone also have a ingenious on\/off build into the band of the headphone that would conserve battery life by turn off the headphone when they be not on my head . I be sure Sony have patent this but Sennhesier need to figure out something similar . so when I want to use these headphone , it take I several attempt at hit button to get thing on and go . it be frustrating and it be distract . there be a light on the headphone that flash when the power be turn on\/off , but unlike , say , my Plantronics bluetooth ear bud , it do not change color for on\/off , so I never know if I be turn it on or off . I can not tell from the base either . the headphone come with a complex grid of lead blink rate and what they all mean , but who have time to sit down with a headphone manual ? great sound and so I keep they , but the usability suck really bad . I might try the newer Sony model at some point .