My grandson likes thde very much. It’s difficult to get the right fit. Theyre awesome! I did a lot of research on these types of products before buying. Just received so no rating on battery life. This "fur" has a slight shinyness to it. I expected a softer step and/or more give in the soles just from what Ive heard from nurses and others who swear by them. La calidad del material es excelente, no se salen de los oídos cuando corro y los botones se sienten muy bien. I could talk more about the books complex but thoroughly enjoyable plot, or Mievilles completely unforgettable, profoundly relatable characters, but instead, Ill just say that Kraken is already back on my "to read" list. It was a perfect purchase and absolute life saver on this trip.