Two things:1. Not only you can adjust the size of the headset band for your head, but you can also bend and position the mic. Battery life is good, but could be better. El material es duradero y se ven muy bien. === PROSPHYSICAL BUTTON --- This is a big deal! No need to get really wordy here. 5-2-2016, has been a few days of constant use. I wear a size 7-1/2 - 8" Nike shoe but found the sock a little bit long. They are also illegal in some states to drive with. Sound is not great for the price range-really youre just paying for the light show, which is INCONVENIENT at Best.