... 2.4ghz digital frequency, anti-interference 3.5inch tft screen,clear photo displaying stable quality intercome monitor,unlock wireless video ... doorphone 3.5inch screen DH-2357MA11simply features:1,2.4G digital frequency hopping and encryption technology2,Clear IR night vision3, ... Rain shield for the outdoor camera is available4,3.5"TFT screen,Hands-free ...