Otherwise, construction and materials are excellent and up to Olukai standards. But over fantastic. I needed a pair of black, 3 inch heels for a wedding that I am a bridesmaid in. The Sound is crystal clear! On most electronic muffs and headphones this area is only lightly padded, so eventually the hard plastic pressing on the outside of my ears begins to hurt. I read the reviews on the click issue where it gets stuck (does double click sometimes) but I gave it a chance since most mouses will eventually will get that issue either way. Still have my pair and wore them into the ground. Im not one to bash a product but if you saw the egg on my daughters forehead I think any parent would understand. Forcing me to use some nylon cord to keep them up on my legs where they belong. The mount secures nicely to the bike but the Flip4 slides into the case and bounces out if you hit any large hills.