Features: 4.5 inch HD IPS display with high resolution 2 million professional security cameras, 170 degrees wide wide angle. Super night vision function, monitoring the situation outside the door during the day and night Support PIR body motion detection Full metal shell, beautiful and prevent damage Supports up to 32G high-speed TF memory cards Built-in variety of ring tones Integrated integrated design, compact structure, high reliability Specification: Motion Detection:On/Off On screen setting:On/Off Video time:10 seconds, 20 seconds, 30 seconds Number of photos taken:One, two, three sheets Format:Support formatting TF card Light source frequency:50HZ/60HZ Power off memory:stand by default setting:stand by Ringtone settings:Built-in six ringtones Volume setting:Three levels of volume optional Indoor unit size:165mmx92mmx16mm Outdoor machine size:62mmx62mmx15mm45mm Indoor machine material:ABS plastic Outdoor machine material:Zinc alloy Infrared body sensor:PIR induction LCD screen type:4.5 LCD screen resolution:480x854 TF card: Maximum support 32G Frame rate 50HZ: 25 frames 1920×1080P Video compression:H.264 Audio compression:PCM format stand-by current:80UA Protection level:IP55 Installation method:Screw plate Applicable door:40110mm Notice: Actual color may be slightly different from the image due to different monitor and light effect Package List: 1 x Visual Doorbell Kit