Product Details: AE-2TV27,AE-2TV37,AE-027-1 AE-037-1 are suitable for the villa with one outdoor unit two indoor units.Sounds from two indoor units will be heard and image will be seen from the video indoor unit when someone presses the button of outdoor unit. Camera of outdoor unit is adjustable in four directions:up,down,left and right for best view. No radiation,low power consumption and high definition 7-inch color video image. Waterproof aluminum-alloyed outdoor unit. Hands-free intercommunication. Electric-controlled door release function. Monitor the gate. Eight different chord melodies for option. Adjustable chroma and brightness. Adjustalbe volume of melodise and intercommunication. Enclosed 15m cable and adapter for DIY. Slim-fit designed aluminum alloyed indoor unit to enrich the fachionable and luxurious life.