*pixel:1.3 mega *high brightness images *simple operation and installation *light and easy mobility *equipped with anti-fog, non-spherical lens *super-wide automatically adjusting-focus lens *handpiece holder with automatic power-off function *with video, s-video, usb and vga output function. *it can be quickly deleted image, re-captured, enlarge function and it also can be saved 4x28 pcs picture totally. *for both of freeze device and handpiece are with quick-connector function. *it can be divided 4 images on the screen, and be switched very easily to each other between 1 image and 4 images. *it can be connected with external infrared sensor without any failure. *with specific remote control.