I just got them and am already stressing. They have worn them a little over a month. Toasty for the winter. Not sure why because the exp date is in 2027. however its SOOO heavy! It was the reason why i bought this for him and hes so excited walking around the house with it. The sole and heel are suede and provide just enough traction, even on not-so-clean wood floors. I used tone controls included in the receiver to bring up the bass up to enjoyable levels. They say "double press the middle button to cycle the 5 EQ modes. The sound coming in is also very strong, in addition to hearing crisp sound during online meetings, I do use them to listen to music as well.