A Sony Replacement Carry Case for WH-1000XM3 Headphones in Black.Features: Tailored hard-shell design: This is a rigid, impact-resistant case specifically molded to fit the folding mechanism of the WH-1000XM3 headphones perfectly. Flight adapter slot: Includes a specific cutout to securely hold the dual-prong airplane adapter so it doesn't get lost in your bag. Compact profile: Designed to be as slim as possible, making it easy to slide into a backpack or carry-on luggage while still providing full protection. Soft fabric interior: The inside is lined with a smooth, non-abrasive fabric to prevent scuffs on the headphones' matte finish. Rugged outer zipper: Equipped with a durable, smooth-gliding zipper that keeps the case tightly sealed against dust and debris. External mesh pocket: Some versions include a small elastic mesh pocket on the outside for quick-access items like a passport or boarding pass.