This is a silicone case cover specifically designed for the WF-1000XM4. Made of very soft silicone material, it absorbs any impact to protect the main unit. ● It comes with a carabiner, so you can attach it to your bag, pants, belt, etc. ● You can charge with a USB cable even with the case on. Of course, it also supports wireless charging. Color: White With carabiner #case #cover #silicone #protection #Sony