Like New! Audio-Technica ATH-M40x Pro Monitor Headphones. No sign of use.  Tested and they sound great.  Detachable cords.  Includes a East Brooklyn Labs Bluetooth Adapter and Amplifier for Audio-Technica ATH M40x.  This makes these headphones totally mobile and able to connect to any of your favorite Bluetooth capable devices, TV, Tablets, Computers, Phones...  Excellent quality.