With Bluetooth 3.0 and NFC technologies, the MDR-1RBT headphones from Sony connect wirelessly to all of your compatible periperhals.The MDR-1RBT provides deep bass and clear treble with its polymer membrane, neodymium magnet and wide frequency response (4 - 80 000 Hz). The MDR-1RBT offers 30 hours of music playback so you can take them with you everywhere!