Elife 2.4GHz 7 inch LCD color display Wireless Video Door Phone Intercom Security System Wide angle IR Camera Night Vision, Support motion detection 2.4GHz digital frequency hopping and encryption technology, transmission distance up to 200 meters at open area, robust anti-interference. Has the infrared night vision clear visual doorbell, can monitor and photograph, motion detection to record the images in the dark. 16 chord rings which can be selected as bell ring. Support for human motion detecting function, it can be set to detect sensitive, Brightness and talk volume are adjustable. Indoor machine can be active and automatic take pictures, and pictures record picture time, it can automatically saved to the SD card.