Extend the range of your WiFi network or tap into a public network over 1/2 mile away! This Super WiFi antenna is a must for any home. First, it extends your home's WiFi network so you can use your notebook throughout your home. Plus, if you don't have a home network, it lets you tap into any public network up to 3,000' away so you can save by not having to pay for private service. Features water and corrosion resistant housing for indoor/outdoor mounting and WiFi USB card for connecting to your computer. Software and 25' of cable incl. 7" x 10.5" x 1". PC compatible only (Windows XP, Vista, 7 & 8).