Take the noise out of noisy planes and accommodations with these noise-canceling headphones. These comfortable, 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. Headphones include an airplane jack for hassle-free music or movie enjoyment.