Amazon offers the Shure Portable Collapsible Closed-Back Headphones, model no. SRH145, for $27.18 with free shipping. (Non-members can spend $35 to bag free shipping; otherwise, shipping costs $5.22.) That's the lowest total price we could find by $12. Features include 36mm drivers, 25Hz to 18kHz frequency response, 100dB sensitivity, 34 ohms impedance, and a 3.5mm jack.