China Top Of All In One Microscope UT-600II

(1) Magnification knob: Rotate the magnification knob to make the image the right size on the display, depending on the size of the product (2) Light source: Ring light source (3) Up and down adjustment knob: adjusts to the height of the product to give a clear image (4) Light source adjustment knob: adjusts the level of brightness of the light source (5) USB port: can be connected to a USB mouse for operation and a U disk for saving pictures