Amazon offers the Panasonic Noise-Canceling Stereo Headphones in White, model no. RPHC200W, for $19.84. Plus, Prime members qualify for free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping costs $6.59.) That's tied with our December mention of another color and the lowest total price we could find by $15. They purport to reduce outside noise by up to 14dB and feature 35mm drivers and a frequency response range of 10Hz to 21kHz.