1,Wi-Fi Detector Shirt 2,the size:xs,s,m,l,xl,xxl 3,Shows signal strength for 802 ... .11b or 802.11g 4,100% Cotton 5,CE,SGS Wi-Fi ... ThinkGeek robot monkeys you can display the current wi-fi signal strength to yourself and everyone around ... later.Product FeaturesGlowing animated shirt dynamically displays the current wi-fi signal strength. Shows signal strength for 802. ...