Newegg offers the MEElectronics NoiseSHIELD NS63 Active Noise Canceling Headphones, model no. HP-NS63-BK-MEE, for $39.99 with free shipping. That's $15 below our October mention, $80 off, and the lowest total price we could find. These headphones feature 40mm cobalt magnet dynamic drivers and 20Hz to 20kHz frequency response.