4.7" High Resolution LCD Digital Door Viewer 150 degree Peephole + Take Photo + Video Record + GSM + MMS Alarm + Motion Detection + Eye Doorbell Video Color IR Camera Cam (K-442) 2.8inch TFT display;Adopt 300,000 pixels CMOS sensor;Camera lens view angle: 80 degrees Screen will automaticly be in sleep model after 10 seconds Once press monitor button Save energy mode: 3xAA battery good for approx 1500 peeps(not included) Memory card:TF Maximum support 32GB memory card (not included) Without breaking the door, easy installation