Big Deals via eBay offers the open-box
Philips Bluetooth Noise-Canceling Headphones for
$24.99 with
free shipping. That's tied with last week's mention as the lowest price we've seen. (It's also the best deal we could find today by $35.) They feature a frequency response of 10Hz to 22kHz, Bluetooth 4.0, and up to 16 hours of music playback per charge.
Note: No warranty information is provided.