They clean off easily and dry quickly. It took a little getting used to as I had previously used a rubberized case for my original Airpods. I like the history of Marvel characters portrayed. Very cheap & free shippingI?d go up about 2 sizes next time. Wish Id bought this years ago! A half size up next time for me. This book is for enjoyment, not so useful for identification. Im going to keep this because it does what I want - I just need to be careful and make sure I dont bridge between two outlets. You can charge the case and then the ear buds. I went to the Soundcore web site and they seem to have absolutely no mention of this particular model on the site.