Enjoy your music with reduced background noise with the new Sony MDR-ZX770BN noise cancelling headphones. The powerful drivers and low bass frequencies allow you to enjoy your favourite songs without the usual distractions. The built in Bluetooth on one touch connectivity with NFC means these are the perfect headphones for anyone out and about. The MDR-ZX77BN boasts precise sound and perfect clarity thanks to the Dynamic 40mm neodymium drivers that respond quickly to deliver clear vocals and deep punchy bass.The built in microphone and phone button means you can take calls anywhere without having to remove your headphones and the built in rechargeable battery means you ca enjoy up to 13 hours of non-stop music even with the noise cancelling feature switched on.