This Earphone

Buy.com has the Kensington Noise Canceling Headphones for $30 - $10 rebate (Expires 3/2) = $20 with free shipping. A built-in microprocessor analyzes background noises and creates an inverse sound wave that cancels the offending sound.

Product description from Buy.com:

Take the noise out of noisy planes and accommodations with the Kensington Noise Canceling Headphones.!
These comfortable and compact headphones let mobile professionals travel in peace and quiet. A built-in microprocessor analyzes background noises and creates an inverse sound wave that cancels the offending sound. Engines, fans, snoring, and other low frequency annoyances virtually disappear, leaving the traveler free to work, sleep, or listen to music in blissful silence.

FeaturesColor Black Manufacturer Kensington Computer Products GroupStandard Warranty 1 Year(s) LimitedManufacturer Part Number 33084Earpiece Technology DynamicDesign Type Over-the-head Binaural Manufacturer Website Address www.kensington.comConnectivity Technology Cable Product Name Noise Canceling HeadphoneProduct Type Headphone

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