Adorama offers the Audio-Technica ATH-M70X Pro Monitor Headphones for $199.99 with free shipping. That's the lowest total price we could find by $54, although most places charge $299 or more. These headphones feature 45mm drivers, a 5Hz to 40kHz frequency response, detachable 10-foot coiled cable, detachable 10-foot and 4-foot straight cables, and swiveling earcups.