Amazon offers the Sennheiser HD 598 Cs Closed-Back Headphones in Black for $99.95 with free shipping. That's tied with our mention from December, $150 off list, and the lowest total price we've seen. These around-ear headphones feature a 10Hz to 28kHz frequency response, 23-ohm impedance, aluminum voice coils, two detachable cables (9.9-foot and 3.9-foot with 1-button remote), velour ear pads, and padded leatherette headband.