3 pair come in the box and they are all the same size. Economical. Easy to place your bike on. Like the charging case Yes, Im fussy about what sounds I hear. Las sandália son muy bonitas y muy muy cómodas. It also has a leather(ette) wrist strap for carrying around that attaches to a silver buckle on the top. It comes with extra cushions to stick in your ears; make sure to use the ones that will make it fit you perfectly. Great form factor, very good to be able to charge all three units at one time, however, the speed of charging for the watch is way slower than my other watch charger. For the time being it will work but I ordered this for the color and that?s not the color I?m interested in.