World Wide Stereo via eBay offers the dB Logic HP-100 Over-Ear Headphones in four colors (Silver pictured) for $16.99 with free shipping. (Select a color to see this price.) That's a buck under our June mention and the best price we've seen. They feature a 3.5mm jack, 20Hz to 20kHz frequency range, and a 4.59-foot cable.