Of note, Best Buy has it for a buck more.
Amazon also offers Prime members the Koss KTXPRO1 Titanium Portable Headphones, model no. 145517, bundled with a $2 MP3 credit for $9.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.74.) Assuming you use the credit, that's the lowest price we could find by $8. These headphones feature 15Hz to 25kHz frequency response, foam ear cushions, and cord volume control.