1.Enlarge the ingesting content displayed on the TV or other displays
2.Prevent quivers, and can fix the reading page.

1.Automatically focus;                        

2.Of the enlargement range from 2 to 75 (21”LCD);                                              

3.Of the mouse shape cameras;                  

4.Of colour, black/white and negative mode;     

5.Can adjuste the image and the brightness;     

6.With brackets,be able to achieve writing function,camera lens F=15.8mm;                 

7.Effective pixel: VGA 35 ten thousand;
8.videography range:max 200mm×200mm;
9.Image sensor: 1/4"CMOS,PAL color system;
10.illuminance:1 LUX;
11.white balance:2500K-7000K,Automatically;      

12.horizontal resolution:480         

13.brightness: 10Lux;
14.plus-minus:yes;
15.backlight compensation:auto;
16.color adjust: built-in;
17.Frozen image, Ultra-high contrast;           

18.Resolution: (640 x 480);
19.Illumination:0.06W x 4(LED);
20.Dxl: 130 x 69 x 64 mm;
21.weight:90g