This sandal is well designed for all day wear during active, outdoor activities. It looks like it was made from scraps. Also, you can use this button to switch between devices, for example between your phone and ipad and your TV amplifier. Also they are coming in a nice small case which makes it easier to carry the headphones around. Like 1/2" bigger than my already stretched out pair! I still have three more books and couple of notebooks to buy. Love that these shoes do not have ties. If it had the star logo on the receiver, I would be able to pair a keyboard with that one receiver. they opened it on christmas and it wouldnt turn on. This is an inherent issue for any non-custom IEM and Id therefore highly recommend custom sleeves.