Never having used an ear/mic accessory for my mobile phone before, I am now amazed Ive lived without these. (The one mode that lets you hear footsteps the most clearly). But as I see it. The minute I opened the package a horrific chemical smell was all over the slippers. However I still make sure the app indicates that my headset is "on ear" when wearing it. Or if I go sell them will the buyer like the case that HAS to be included? Definitely go for a more flexible case unless you want it cemented on, this case is not for you! The TaoTronics has an internal battery that charges through a normal USB phone charger. Really sturdy and not slippery. These, however, are a disappointment. 5, sometimes an 8, so I ordered the ladies 8.