For its newsletter subscribers only, newegg offers the KOSS UR20 DJ Stereo Headphones (pictured), model no. 140855, for $29.99. Coupon code "EMCNCJA57" cuts them to $14.99. With free shipping, that's the lowest total price we could find by $3, outside the price below. These headphones feature circumaural earpads, 3.5mm and 6.3mm connectors, 30Hz to 20KHz frequency response, and more.

A close price: NothingButSoftware charges $15.39 with free shipping.

Also available for newsletter subscribers is the Rosewill RHTS-11004 Stereo Headphones for for $29.99. Coupon code "EMCNCJA59" cuts them to $14.99. With free shipping, that's the lowest total price we could find by $13. They feature a 3.5mm connector, circumaural earpads, 20Hz to 20KHz frequency response, and more. Coupons expire July 25.