* 7 dB Internal Removeable Directional Patch Antenna * Easy to install and operate * 8 user selectable channels * Not susceptible to 802.11 b/g wireless data interference * Delivers high resolution, Real-Time video * Range from 2000 feet to 4 miles line of sight (depending on optional receiver antenna) * Rugged All-weather IP-67 protective enclosure * Includes One Year Limited Warranty * Perfect for commercial, industrial, scientific, law enforcement and government video security applications