The company's user guides warn against using harsh abrasives.

WSJ: Cleaning Products Get Stronger Even Though Scrubbers Insist On Using Elbow Grease

The package consists of a cradle that contains an assortment of lenses and filters which line up with the handset's camera, along with an app that guides the user through the testing process.

ENGADGET

It provides performance, audio visual and graphic capabilities to enable Internet-driven applications, video, personal media, advanced user interfaces and electronic program guides.

ENGADGET: Boxee Box ditches NVIDIA's Tegra 2 for Intel CE4100, pre-orders start today at $199