BuyDig has these Audio-Technica QuietPoint Active Noise-Canceling Headphones for $34.99 after instant savings. They feature a frequency response of 20Hz to 20kHz, noise reduction of up to 15dB, 40mm drivers, gold-plated 3.5mm detachable plug, and more. It ships with a carrying pouch, 2-prong airline audio adapter, and AAA battery. They sell for $69 at Mwave
. Shipping is free.