In this day and age we always need to know if there is wi-fi in our current location, so now you can show everybody and help them out on a Wi-Fi location and the strength of the signal.
Check out this really cool wi-fi detector t-shirt, it displays the current wi-fi signal strength for 802.11b or 802.11g and will run for hours off three AAA Batteries. I would say this is definetly a must have for geeks.
Made from 100% cotton this wi-fi t-shirt has a sewn in battery pack holder on the inside and for easy washing the animated decal is removeable.
Get your Wi-Fi Detector T-Shirt.