1 surround sound algorithms. I keep them at the door to wear outside in the yard but I don’t wear them away from home so I can’t attest to how they hold up to long walks or all day wear. Good for listening to music, not good at all for answering phone calls. Happy customer i ordered 2 pairs in black and silver , and want to get another color pair. Finally, the leather looks incredibly cheap and plastic-y. I have artificial hips and cant get down low enough to tie my own shoes. The treads can get a bit clogged in mud, making them slippery, but overall I think they are really nice and well made shoes. Get them you wont be disappointed. 5 - 9 WW so after reading through the reviews, I decided to order size 10 = WIN! This was as close as I could get.