This is the Sony wireless noise-canceling stereo headset "MDR-ZX770BN". The box, instruction manual, and accessories are not included. Only the main unit shown in the photos is for sale. The ear pads have been replaced with new ones, so you can use them cleanly. It can be charged via Micro USB (Micro-B), and Bluetooth connection works without any problems. If you wish to use a wired connection, you will need a dedicated SONY jack, so please prepare it separately. Although it is a used item and shows signs of use, there are no operational problems. Please check the condition in the images. Please refrain from purchasing if you are looking for a complete product, as this is a used item. Only the items shown in the photos are included. If you would like photos of specific areas for closer inspection, please let me know in the comments. To prevent any trouble, we will keep a record of the serial number if there is one. We do not accept cancellations due to the buyer's own circumstances, including incorrect purchases or cancellations followed by later purchases. Also, please note that we cannot provide support for any issues after the evaluation (after the transaction is completed). We will carefully ship the item using packing materials such as cardboard and bubble wrap. There is a possibility that we may use recycled materials such as cardboard and packing materials other than bubble wrap. Thank you for viewing.