Sennheiser CX 880 Ergonommic Premium Earbuds with Volume Control

From the Manufacturer
Looking as classy as they sound, the Sennheiser CX 880 in-ear headphones offer lifelike sound quality and a custom fit that feels like they were made for your ears. Co-designed with BMW DesignWorksUSA, the CX 880 provides aggressive noise blocking thanks to its close-fitting ergonomic design, which also channels cabling away from your ear.
These ear-canal, noise-isolating headphones use a dynamic speaker and a specially tuned transducer that reproduces a transparent, clear audible image. And you can keep your audio player in your pocket and still control playback volume with the included in-line rotary volume adjuster. The cleaning tool and ear-debris-guards protect your investment, while the included carrying case makes it easy to bring along wherever you roam.
Specifications
Frequency response: 17-23,000 Hz
Sound pressure level (SPL): 115 dB
Ear coupling: In-the-ear
Impedance: 32 ohms
Total harmonic distortion (THD): <0.1 percent
Connector: 1/8-inch (3.5mm)
Cable length: 3.9 feet
Weight (without cable): 0.46 ounces
Compatibility
Optimized for MP3, iPod, iPhone (iPod and iPhone are trademarks of Apple Inc. registered in the U.S. and other countries), and portable media players.