White Sony MDR-NC11 Fontopia Noise Canceling Headphones In line Volume Control

White Sony MDR-NC11 Fontopia Noise Canceling Headphones In line Volume Control - Manufacturer RefubrishedFACTORY RECONDITIONED BY SONY (Good as new with 90 day warranty)Noise canceling design and technology cuts ambient noise by 70 percent9 mm drivers deliver powerful soundLong cord gives you flexibilityIncludes integrated volume control, and a miniature connection box for one AAA battery90 day Factory Warranty from Sony directSony's MDR-NC11 Noise Canceling Fontopia(R) Ear-Bud Headphones offer you peace and quiet wherever you go, reducing noise by 70% (10dB) when the noise canceling circuit is switched on.In addition, its 9mm driver units produce powerful sound for your listening enjoyment. So tune out noise at work, when you travel, or even when you are trying to sleep in a loud environment. The Noise Canceling circuit actually senses outside noise with built-in microphones and sends an equal-but-opposite canceling signal to the headphones. The Noise Canceling on/off switch located on the battery box indicates when Noise Canceling is operating. Additional features include the Fontopia(R) in-the-ear design, Volume control, and a Miniature connection box for a (AAA) battery. Silence outside sound with Sony. Cord Style - Straight Headband Features - Sports Style Impedance - 20 ohm(s) Included Components - Carrying Case Interface Type - Audio - 1/8 (3.5mm) Headphone Miniplug Noise Canceling - Yes Sensitivity - 106 dB Satellite Max Frequency Response - 22 kHz Satellite Min Frequency Response - 10 Hz Weight - 1.7 ounce