Hammer with your hand only. Makes my bathing feel luxurious and natural. That’s when the power beats pro went back. It states these are for men but they look great on women too. Bon produit pour une fête dans votre cours. (Just kidding)It came ready charged so I could use it straight out of the box. I love UGGS. The recessive nature of the bass, is in part relative to the forward highs, the ‘phones can’t be turned up too far to reveal the full bass glory - as the highs then become too loud. Simple and effective. The stuff at the bottom started peeling off a d the bow came off.