We've started seeing new kind of headphones, which unlike the usual headphones, come with digital connectors and connect to microUSB or similar digital ports. During the CES 2015, Philips has announced new headphones, the Fidelio NC1L, which are priced at $299 (Rs. 18,712).
They're designed specifically for Apple products featuring a lightning port (such as the iPhone 5/5S and the iPhone 6/6Plus). They come with not only comes with a lightning connector instead of a 3.5mm headphone jack, but also features a built-in noise cancellation mechanism. As the lightning port can also output power along with the digital audio, these headphones don't need external power or batteries to accomplish noise cancellation unlike other noise cancellation headphones. The Philips Fidelio NC1L headphones have inbuilt DAC (digital to analog converter) and an amplifier to convert digital signals to analog audio signals for the drivers.
Thanks to the microphone array on the headphones, you can choose to allow or disallow ambient noise according to your choice. Last year, Philips had announced Fidelio ML2 headphones for the iPhone, though they didn't feature inbuilt noise cancellation.