Amazon.com Product Description
Small enough to keep with you at all times and ideal for achieving peace and quiet in planes, trains, buses, and cars, Sony's MDRNC11 noise-canceling Fontopia ear-bud headphones reduce perceived outside noise by more than 70 percent (up to 10 dB at 300 Hz) so you can hear musical nuances against a quieter background.
The headphones' noise-canceling circuit senses outside noise using tiny, built-in microphones and sends an equal-but-opposite canceling signal to the headphone drivers, effectively blocking solid-state (continuous) noise from 50 to 1,000 Hz. It's especially effective on noises like air-conditioning systems, freeway rumble, and airplane engines (from a passenger's perspective).
The switchable noise-canceling circuitry runs for approximately 60 hours on a single AAA alkaline battery. When noise canceling is off, the headphones continue to function for standard music listening (and with slightly better sound quality). An inline volume control lets you adjust the sound without having to access your sound source.
Product Description
Sony'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
See all Product Description