This Sony OEM hard headphone case is the perfect solution for carrying your headphones with you wherever you go. The case is made of durable nylon material and features a hard case with a zipper that protects your headphones from scratches and damage.This carrying case is compatible with Sony headphones, including the WH-1000XM4 and XM3 models. Its dimensions are 9 inches in length, 7 inches in height, and 2.25 inches in width, making it a perfect fit for your headphones. With this hard headphone case, you can safely and easily carry your headphones with you on the go.