This Bose (model QuietControl 30) black headphones come with an ergonomic neckband design that conforms to the body. These headphones are designed with soft materials for comfort. They come with StayHear+ QC tips that form a seal to cancel noise. This product is re-engineered with Bluetooth and NFC pairing which enables it to easily connect to devices wirelessly. They have an inline remote that allows the user receive and make calls. The MPN is 761448-0010.