1) The only WiFi detector on the market today 2) Completely hassle free - no more booting up your notebook to find a WiFi signal 3) Compact and light weight - fits in your pocket 4) Detects open hotspots up to 200 feet away 5) Filters out other wireless signals, including cordless phones, microwave ovens and Bluetooth networks 6) No software or computer required and the pocket-sized, patent-pending design is compact and light weight Product Size:6.8*4.8*1.5cm N.W.:21g Outer packing Carton Size:39*22.2*18.5cm N.W.: 6.0kg G.W.: 6.5kg 200 sets/ctn