Sony has launched MDR-NC7 noise canceling headphones that feature a foldable and swivel design.Claiming a battery life of approximately 50 hours, the haedphones have a dual-use capability that gives users the option to listen to music with or without the noise cancellation feature. The 30mm driver (Neodymium magnet), and an on/off switch for noise cancelling will allow someone to use the headphones even if the battery runs dry.

The headphones weigh approximately 134g (including AAA battery) and work on a 30 - 20,000Hz range with a maximum outputof 100mW and a sensitivity of 102dB/mW while it is switched on and 100dB/mW in switch off mode. A plug adaptor is also supplied to connect directly to stereo or dual jack of in-flight music services.