T-shirt with WiFi Detector

Can you imagine if your shirt can detedted WiFi signal?no way?yeah but it's true this stuff is real, it's called WiFi Detector T-Shirt, it has same shape like other t-shirt, but there is a picture of tower signal on it.

interesting that the picture responded with WiFi signal, if you are in a place with signal or in the hotspot area, light in the picture will on, this shirt made from cotton that can detect 802.11b and 802.11g Wifi Network. for power was supplied with 3 AAA baterai. but hey don't be careless when you wash it..