Monoprice offers its Monoprice Premium Hi-Fi DJ Style Over-the-Ear Pro Headphones in Black, model no. 8323, for $15.99 with free shipping. That's tied with our December mention as the lowest total price we've seen. (It's the best now by $11.) They feature a 20Hz to 20kHz frequency response, 3.5mm jack, two 3.5mm audio cables, and a 3.5mm to 1/4" gold-plated adapter plug.