When you review cases for smartphones, it is difficult to tell one from the other. The Halo and Ontrion cases that I reviewed last week give more battery life, but this Linkase Pro is made for boosting the 3G + WiFi signal.

That’s right, this is a cell phone case that is designed to boost the signal of a phone. I am not certain if this has been done before, but it uses two EMW elements. You can see one of these EMW elements extended in the image, and there is another one on the other side. What is EMW? The EMW (Electro Magnetic Waveguide) is able to steer radiation energy emitted by the iPhone away from the head and body and into an open space, which somehow improves the signal.

In addition to boosting the signal by a full bar (in some cases), the Linkase Pro also boosts the battery life of the iPhone 5/5S by 20 percent with its more efficient use of power and resources.

If you want it, you can get it in four different colors (Coal Black, Midnight Blue, Blush Pink, and Frost White) on the Absolute Technology site for about $39.95.