The amazing Wifi T-shirt illuminates with 802.11b or 802.11g showing the precise strength of signal. Now you can find out if there is wifi signal without switching your Laptop or PDA on! Made from 100% high quality durable cotton. Recommended hand wash only. Available Size(s): S, M, L & XL. Power Source: 2 AAA Batteries (not included)

Available Size(s):
Small (Chest: 36-38')
Medium (39-41')
Large (42-44')
XLarge (45-47')