Amazon offers the Akai Professional Project 50X Over-Ear Studio Monitor Headphones in Black for $29.27 $28.33 with free shipping. That's a slight drop from our mention from two days ago and the lowest price we've seen. (It's the best deal now by $31.) These closed-back headphones feature a 50mm dynamic transducer, 10Hz to 30kHz frequency response, collapsible design, swiveling ear cups, straight and coiled 6-foot detachable cables, 1/8"-to-1/4" adapter, and leatherette travel pouch.

Note: The price may be fluctuating slightly.