These Able Planet Extreme Noise-Canceling Stereo Headphones drop from $37.93 to $24.49 plus free shipping at World Wide Stereo when you use our exclusive coupon code BRAD230 at checkout. This was the lowest price we found by $13. These headphones have a wide frequency response of 20Hz to 20,000Hz and active noise cancellation. They also have in-line volume control. They are availabe in red (pictured) or green. Sales tax is charged in most states.