DESC: The HAO9SDP Hi-Gain 9 dBi Outdoor Directional Antenna Kit is a heavy duty, weather proof, high powered antenna for extending the range of your existing wireless 802.11 b or 802.11g WiFi devices. Whether your application requires extending a wireless signal from on building to another or simply from one end of the house to another end, the Hi-Gain 9dBi is the perfect solution. The power rating of WiFi antennas is measured in terms of decibles (dBi). The HAO9SDP boots the antenna power of standard antennas from a minimal 2dBi to a staggering 9dBi. The Hi-Gain Directional technology concentrates your wireless signal directly towards the wireless source from your network. This results in a significantly increased in wireless distance. When paired with another Hi-Gain 9dBi antenna, you may extend your distance by up to 1.5 miles. Installation of the HAO9SDP is simple.