altatac via eBay offers the Monster Beats by Dr. Dre Studio Over the Ear Headphones in seven colors for $169.99 with free shipping. That's the lowest total price we could find by $10, but we saw them for $5 less in October in pink. They feature active noise cancelling (powered by two AAA batteries, included), a detachable cord, audio adapter, carrying case, and in-line remote and mic.