Sony Fontopia Earbuds White, MDR-NC11A

Enjoy peace and quiet on business trips with Sony's MDR-NC11 noise canceling earphone. Outside noise is reduced by 70% (10dB) when the noise canceling circuit is switched on. The circuit actually senses outside noise with built-in microphones and sends an equal but opposite canceling signal to the earphone. The ultra compact 9mm driver units produce powerful sound, and the Fontopia in-the-ear design makes these earphone light and comfortable.

Key Features and Benefits: Reduces Noise by 70% (10dB) when noise canceling circuit is switched on Ideal For Travel Gives you peace and quiet on planes, trains, buses and cars; quiets noisy air conditioners Noise Canceling Circuit Actually senses outside noise with built-in microphones and sends an equal-but-opposite canceling signal to the headphones; cancels noise from 50Hz to 1,000 Hz, with a maximum of 10dB noise cancellation in the critical range from 100 to 400 Hz - where the human ear is super-sensitive Noise Canceling On/Off Switch Located on the battery box; red Power LED indicates when Noise Canceling is operating; when Noise Canceling if off, headphones continue to function for music listening Volume Control Means you won't have to reach into your pocket or under your coat to adjust the volume 9mm driver units Are super small; ultra-compact drivers produce powerful sound with space left over for the sonic isolation of these silicon designed earbuds Ideal for work Helps you shut off outside noise and concentrate on the job at hand Ideal for getting sleap In noisy environments, including dormitories, hotel rooms and planes Ideal for music Lets you listen to music through the headphones, while the noise canceling circuit reduces outside sound Fontopia in-the-ear design Fits snugly, yet comfortably inside the ear; eliminates the headband so you can enjoy music while exercising, skating or dancing Miniature connection box For AAA battery