Sony WH-XB900N Wireless Noise-Canceling Headphones - Stereo - Mini-phone - Wired/Wireless - Bluetooth - 30 ft - 50 Ohm - 2 Hz - 40 kHz - Over-the-head - Binaural - Circumaural - 3.94 ft Cable - Electret, Condenser Microphone - Noise Canceling - Black