Amazon offers the Sony Studio Monitor Series Stereo Headphones in Black, model no. MDR-V6, for $49.99 with free shipping. That's $5 under our August mention and the lowest total price we've seen. (It's the best deal today by $49.) They feature a 5Hz to 30kHz frequency response, 40mm drivers, 10-foot cord, and 3.5mm connector with 1/4" adapter.