Klispch's first active noise-canceling (ANC) headphone model provides an unrivaled listening experience - no matter how you want to listen. When you're in an environment where outside noise threatens to compromise sound quality, Klipsch Mode M40 headphones with active noise cancellation are ready to block it out, providing up to 45 hours of ANC on a single AAA battery. But it also serves as a fully functioning stereo headphone without battery power, giving you the option of listening wherever you want, however you want. Brains and beauty. Sixty-five years of world-renowned sound is at the heart of the Klipsch Mode M40 Headphones. With a 40mm moving coil woofer and 15mm tweeter, they deliver signature Klispch sound with deep bass, a dynamic midrange and clean, crisp highs. And with their sleek profile, rich bourbon finish with blazed copper accents, they are a striking alternative to standard black headphones. Hours of listening pleasure - music or calls. Each lightweight leather ear cup of Klipsch Mode M40 headphones contains a special high-density memory foam for enhanced comfort, while an adjustable headband ensures a perfect and secure fit. Two detachable cloth cables fit any device with a standard 3.5mm headphone jack. With one cord featuring an Apple-based echo-canceling mic and three-button remote, users can take calls and control music on an iPod, iPhone or iPad device. Comes complete with a brown leather carrying case, one AAA battery, airline adapter and -+-inch adapter. Specifications: Drivers: Dynamic moving coil 40 mm and 15 mm speakers Frequency Response: 20Hz - 20kHz Impedance (1kHz): 32 ohms Sensitivity (@ 1mW, 15mm): 97.5 dB Great sound has never looked so good. Order your Klipsch Mode M40 Active Noise-Canceling Headphones from Brookstone today! iPad, iPhone, iPod and Apple are trademarks of Apple Inc., registered in the U.S. and other countries. The remote and mic are supported only by iPod nano (4th generation and later), iPod classic (120GB, 160GB), iPod touch (2nd generation and later), iPhone 3GS, iPhone 4, and iPad. The remote is supported by iPod shuffle (3rd generation and later). Audio is supported by all iPod models.