Groupon offers the Monster Beats by Dr. Dre Studio Over-the-Ear Headphones in five colors (Orange pictured) for $169.99 with free shipping. That's the lowest total price we could find by $5, although we saw them for $20 less a week ago. They feature active noise cancelling, a detachable cord, audio adapter, carrying case, and in-line remote and mic. Deal ends November 22.