Skullcandy via eBay Daily Deal offers its Skullcandy Agent Over-Ear Headphones in five colors (Carbon pictured) for $19.99 with free shipping. That's a $5 drop from our August mention and the lowest total price we've seen for these headphones. (It's also a current price low by at least $10, although most merchants charge $40 or more.) Features include a 18Hz to 20kHz frequency response, 40mm drivers, satin travel bag, and more.