Audio specialist, Sennheiser, may have lost some ground with the release of the highly popular Monster Beat headphones, but rest assured, when it comes to top flight quality, you can't do any better than these guys.

And now that they're collaborating with BMW->ke178 Group DesignworksUSA, they've got something that should pique the interests of auto and audiophiles all over the world. Their latest work is the S1 Digital Pilot headphones, which was recently unveiled at AirVenture 2011 in Oshkosh.

The headphones comes with an inner metal band made of spring steel that makes it suitable for just about any kind of head shape it gets put in. Likewise, it also comes with two thick soft pads that allow it to be pressed firmly without making contact to the sensitive parts of the ear. These ear cups also take the shape of the sweep of a wing, hence the aviation theme of the whole product. The S1 Digital Pilot also has an ergonomic feature that allows people wearing glasses to fit the headphones comfortably without having to adjust their glasses all the time.

More details on the Sennheiser S1 Digital Pilot Headphones by BMW after the jump.

Another distinct feature of the S1 Digital Pilot is the elaborate control module that comes with a contoured grip and a streamlined interface with high-contrast icons and LED graphics that make it suitable when its dark.

Then there are the other nifty technological features of the headphones, including a NoiseGuard active noise cancellation system, mono/stereo operation, adjustable muting, and Bluetooth transmission functions.

The S1 Digital Pilot also offers wireless connection to mobile phones and an audio source with a pair of AA batteries powering the NoiseGard / digital noise cancellation system.

It's not going to the market popularity of those Monster Beats, but when it comes to aesthetics, functionality, and technological quirks, there are few headphones in the market that can rival the S1 Digital Pilot. The fact that it has imprints from BMW is the cherry on the sundae.