Longer Nano Duo AI Laser Engraver is a smart and high-performance tool that uses AI automation and dual-laser technology.Features include AI-powered engraving, dual-laser technology, 3D embossing perfection, true vertical cutting, and a blazing 10,000mm/s speed.The engraver is portable and versatile, allowing for engraving on vertical or irregular surfaces.It also offers effortless control with a 2.8-inch touchscreen and LightBurn compatibility.