Sony MDR-NC31E Digital Noise Cancelling Headset - White

The Sony MDR-NC31E Digital Noise Cancelling Headset is rated for a frequency response of 20Hz – 20000Hz. It features 13.5 mm dynamic speakers and has an nominal impedance of 31 Ohms. There is an included EC microphone and the connector is of the standard 3.5mm 5 pole variety.

The Sony MDR-NC31E takes after the Sony NC13 headphones, which came out in 2011 and had active noise cancellation built-in. With this new model however the noise cancelling feature works only when you connect them to on the Sony Xperia Z2 and Sony Xperia Z2 Tablet, which both have built-in digital noise cancelling (DNC) technology that works only with the MDR-NC31E and other Sony DNC headsets. Of course, the headset will work on other smartphones and devices with 3.5mm audio ports, but without the noise cancelling function.