Amazon offers the Soul by Ludacris Noise-Canceling Headphones in White/Black, model no. SL150BW, for $67.81 with free shipping. That's $4 under our mention from two weeks ago and the lowest total price we could find by $10, although most merchants charge over $100. They feature a frequency response of 20Hz to 20kHz, detachable cord, 1/8" to 1/4" adapter, and protective case.

Update: The price has dropped to $66.79 with free shipping.