Laser engraving machine U flash Disk Supported: Red Dot Pointer Raster/Vector Color Mapping Intuitive Control Panel OL690 Laser machine / Laser engraving machineFeatures:1. Configure high power and quality laser tube, can work over 3000 hours. 2. DSP control system, rich function, can approach engraving on plane, gradient engraving by 360 degrees, cutting and drilling holes etc. 3. with function ...