Wireless headphones with noise-canceling function, the WH-1000XM4. Purchased 3 weeks ago, They have been used very little and are in overall very clean condition. There are no noticeable stains or scratches on the main unit. I handled them with care after use and stored them properly. A microfiber cloth is included. Operation has been confirmed, and you can use them without any problems. The noise-canceling performance is also good. The battery lasts up to 30 hours. - Brand: SONY - Model Name: WH-1000XM4 - Type: Wireless Headphones - Function: Noise Canceling - Connectivity: Bluetooth - Accessories: Carrying case, charging cable, instruction manual - Color: Black Thank you for viewing.