Important NOTE: Please do NOT update firmware. Updating firmware may causing irreparable problems. The software doesn't fit mac, only fit windows. Specifications: Need to assemble it yourself: Yes Material:stainless steel and acrylic Working Voltage:DC 12V Laser Power:500mW Engraving Area:40X50CM(maximum) Size:56x44x16CM Voltage:220V PLUG:EU Control software: benbox software support power can be adjusted, weak light positioning This 500mW DIY desktop blue laser engraving machine is ideal for amateur laser engraving usage with grayscale printing,low-light positioning and freedom positioning functions.It only need you to connect it to the computer,then you can print any pictures your like with your own creativity. Package: 1x DIY Desktop Mini Laser Engraving Machine 1x Laser goggles.