I went ahead and charged them before using them. All in all, a great product for the price. Also because of the material they are about as anti slip as you can get. The game itself is awesome. Simply rinse off & they are good as new! They dont clamp hard, they sit nicely around my ears - comfortable straight away. Le pongo 4 estrellas debido a que en la porcion del torso le falta estar un poco mas largo para mi gusto, ya que queda justo en el borde costal, provocando que se enrolle un poco al sentarse y agacharse. You have to fold your comforters the length of the bag to make them fit in an aesthetically pleasing way. If you are going to be rough on the crocs it may scrape off. The boom arm is flexible, the ear cups and the cord (with XLR and 1/4" headphone plug) replaceable.