... easy install wireless video doorphone,video intercom phone,video doorbell,intercom/unlock/monitor functions,clear image & sound,easy install Specifications:3.5" TFT ... /stream,etc;Wide angle lens and Infrared Night Version camera,work well even in dark environment;2.4 G ... ;Calling out,Surveillance,Automatically Unlock and Doorbell,etc functions;Camera Resolution:320*240 pixels;Power Supply: DC 12V,5A ...