... and conveniently 2,8 channels 3,power :12V 1500mW 800mW 4,range:3km(in open areas) Feature:Digital play,8CHS transmitter ... °C Receiver specificationDigital display, receive sensitive.Multiple working channels, convenience,high credibility, suit for wireless surveillance ... frequency:1.2ghzPackage Contents:1X wireless transmitter1X receiver1X AV cable1X transmitter cable1X antennas1X manualthe whole set ...