Specification :

Features:
-1 Composite video input, 1 Composite video output;
-Connect DVD, DVR and hold up to 4 comparison picture on TV.
-OSD function ( display disappear after 3 seconds, and keep display after freezing)
-Working Status LED light indication
-Compatible with PAL/ NTSC
-4 Video freezing modes: 1/ 1 ( single Image full screen) , 1/ 2 ( left and right) , 1/ 2( top/ botom) , and 1/ 4 Quad Mode Equal.
-Zoom and view of each frozen picture under any type of image freezing;
-Parameters like lightness, contrast, hue, color, etc. are adjustable and auto-store when power off.
-Switch between Positive image and negative image manually;
-Video freezing and release function;
-Working status auto-save after turn-off or power-off;
-Odd-frequency, even frequency display scan switchable function;

CN funcation:
CN1: Power input 1= + 12V 2= GND
CN2: Video output 1= GND 2= VIDEO
CN3: Key Input 1= GND 2= KEY1, 3= KEY2, 4= KEY3, 5= KEY4,
CN4; Video input 1= VIDEO 2= GND

buttons:
key1: Show the picture you specified
key 2: specify the picture which you would like to show, Show the pictures one by one.
key3: Freezing or cancel freezing
key 4: Choose the freezing mode: 1/ 1 ( full screen freezing) > 1/ 2 ( left and right) > 1/ 2 ( up and down) > 1/ 4 freezing