World Wide Stereo offers the Able Planet Extreme Headphones in Red or Green, model no. XNC230, for $49. Coupon code "CLEARANCE" cuts the price to $22.49. With free shipping, that's tied with our mention from a week ago and the lowest total price we could find by $27. These headphones feature active noise cancellation and a 20Hz to 20kHz frequency response; they require one AAA battery (included).