AltaTac via eBay offers the Vibe Sound DJ 750 Noise Reducing Stereo Headphones in 10 colors (Blue pictured), model no. VS-750-DJ, for $6.95 with free shipping. Outside of the price below, that's the lowest total price we could find by $4, although we saw them for pennies less last week (since expired). They feature an adjustable headband, 40mm neodymium drivers, and more.

Of note, Click Go & Buy via Buy.com offers the headphones in Black for $6.68 with free shipping.