The bars on the front of this shirt glow dynamically as the strength of the WIFi signal waxes and wanes.

What this does see, what it does is quite clever really, what this does is pick up Wi-Fi waves from around the wearer and display the strength of the WiFi signal via the front of the shirt. Clever eh. All you need to do is to hook it up to a few AAA batteries and you can be the coolest antennae in the office.