Features: *2.4” LCD visual monitor with one outdoor door peephole,picture pixels is 300000,clear image and LCD screen superior to traditional doorbell,it can show images clearly and smoothly. *Digital electric peephole,also called electric door-eye,which plays an important role in home anti-theft door, it is composed of digital camera and display screen,more accurate and safe. *Easy for installation:DIY, only need a few minutes to install. *Low power remind function:When the power is not enough,the indicator at the right bottom of screen emits light. *Wide users scopes including elder,little children,old men with poor eyesight.Low power consumption:the host is powered by 2*AA batteries(not included) and it is very convenient for changing the batteries. Specifications: Display:2.4 inch LCD screen LCD Resolution:320*320 Camera pixels:300000 Peephole viewing angle:150 degrees Door thickness:3.5-7.0cm/4.0-6.9cm Power Supply:DC 3V 2 PCS AA batteries(not included) Host Monitor Material:ABS Peephole Material:Metal Host size:13.5*9*3cm Host weight(without batteries):124g Peephole size:4*2.6*2.6cm Peephole weight:21g Package Information: Package Size: Approach.16.7*9.5*4cm/6.57*3.74*1.57in Package Weight: Approach.218g/7.69oz