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. ● Includes a carabiner, so you can attach it to your bag, pants, belt, etc. ● Charging with a USB cable is possible even with the case on. Of course, it also supports wireless charging. Color: White With carabiner #case #cover #silicone #protection #Sony