... 2 pcs, automatic identifying function 3. Channel: >=32 digital beam former 4. Resolution: horizontal<=2mm, Vertical<=1mm Dead ... Width 12. Gray: 256 13. Imaging technology: full digital beam forming, continuously dynamic adjustment focusing, Dynamic aperture 14. ... LCD Adjustable: Brightness, Contrast, Backlight, Battery indicator 31. Print Function: Laser printer we recommend: HP laser Jet 1020, ...