There are three things I hoped for in a set of wireless headphones: good quality sound, comfortable fit and easy, stable connection. To me (and to many, perhaps), it is THE most important element, if wearing them for at least an hour is what you use them for. To be the equal of the PSB M4U-1 means the SHP-9500 is one heck of a headphone. I do find them to be a little snug. Traction on bottom of shoe is not very good. Originally rated 2 STARS because chargeplay clutch charging mechanism arrived defective and would not charge my Samsung Galaxy Note 10+ for more than 1-2% before shutting down. Because it too big I need to return them. I ordered my regular size I’m glad I did because I wanted it to be tight. I wear them strictly at home, as much as possible, from the moment I get out of bed. Oh these are Just lovely!