Newegg offers the open-box
Philips SHP9500S Over-Ear Open-Back Headphones for
$37.99 with
free shipping. That's $12 below our mention of a factory-sealed pair from last month and $32 under the lowest price for a sealed set today. They feature 50mm neodymium drivers, a frequency response of 12Hz to 35kHz, and 32-ohm impedance.
No warranty information is provided.