Experience wireless freedom with Sony Bluetooth Headphones MDRXB-950BT. These sleek, comfortable headphones deliver incredible sound quality. The headphones with extra bass provide Bluetooth audio streaming with AAC and APT-X support. Extra Bass with powerful sound. The over the head Bluetooth headphones are equipped with 40mm drivers. A built-in microphone makes it easy to use them for hands-free phone calls. They can be used wirelessly; passive mode allows for normal, corded operation without relying on the battery. The battery provides up to 15 hours of use before needing recharging. The headphones have a swivel design for effortless portability. A USB charging cable is included for added convenience. Also a Free Aux In To In Cord is also added for added convenience.