I purchase these after a fair amount of review all of the wireless headphone out there . for personal comparison , I have a double pair of infrared headphone in the bedroom , and consider they be basically generic in brand , they do pretty well . these sennheiser be definitely a step-up in quality , be fairly simple to use and sound great for what I use they for , which be mostly record television program & internet-based talk radio . specifically , once they be tune , there be no static or pop noise . I like the fact that they can operate over 3 different channel , all of which can be fine-tuned . my only complaint with the tuning be that the tuning dial be right next to the volume dial and can be easily bump . they comfort be good and I hardly notice they after several hour of wear they , but they fall off fairly easy if I bend over . and , the ear pad do not close around the ear like some headphone do . battery life be pretty good & I get about 15 hour out of the no-name brand one that come with the headphone -- I expect to get about that amount of time out of my 900mah nimh rechargable aaa . the last thing I 'll mention be that the range on these be about 35-40 foot on the same floor and that be through several wall & with the transmitter sit up high . all in all , a good value right within my spending budget .