(Theres a "+" and "-" button on ether side of the earphones silver ON/OFF button to adjust the volume. They cancel out the external noise and allow me to concentrate on the podcasts I like listening to. I have this style in several other colors. My return was $11. The sole is very springy and soft, very nice to wear, doesnt dye the foot (some shoes with dark soles do that and its very nasty), has very delicate arch support, straps fabric is bright, soft, doesnt chafe against the skin between toes, you can tie the knot tighter and make more space for your foot if you need. This garment is 101% perfect. ) Very disappointed, especially with the price I paid for these shoes. You can install in any place you want mine is inside the shower and I have not had any issues. No more having to exchange storage cards, and having to upload them onto my computer. _____*Pros:-Really quick and easy to install.