KKmoon NEJE DK-8-KZ 1000mW Mini USB Laser Engraver Carver Automatic DIY Print Engraving Carving Machine Off-line Operation with Protective Glasses This laser engraving machine features the function of print carving and more practical than normal engraving machine. High precision and high stability: with 108 screws and alloy structure make it strong. Unique frame and weak light automatic positioning: frame positioning makes the image positioning easier. Offline operation: this machine supports operating without computer, only need to prestore a picture and connect the two usb ports to charger or power bank(not included); one button to operate. Professional power IC and radiator, carving time will last much longer and carving performance will be more stable than other laser.