Of note, Total Defense Premium Internet Security must be activated before the rebate can be redeemed, which involves providing your credit card information. However, you can cancel the service at any time within the first year without incurring any additional charges.
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.