Zagg Invisible Shield: Protection for Your Gadget Plus Free Headphones

Zagg's Invisible Shield is like plastic wrap for your smartphone, made from the same thick military-grade helicopter blade protective film. The company makes films specifically designed for individual smartphone models, with quite a few to select from. While the films may seem expensive, they are backed by Zagg's lifetime replacement warranty, which will last you through the device's lifetime. For a limited time, if you spend $100 or more on Zagg, you'll get a free pair of headphones called ZAGGphones (valued at $100) or USB speakers (valued at $80).

The films are relatively easy to apply. There is a soapy spray that you apply to the film and the device, as well as a little squeegee for you to remove any air bubbles. Once on, the film offers great scratch protection, though don't expect to drop your smartphone and have it go unscathed.

To purchase the Invisible Shield, you can go through Zagg's website and follow the instructions there to get your free headphones or speakers.