VEVOR 2-in-1 Dual Laser Engraver, 10,000 mm/s High Speed, Portable 20W Blue and 2W IR Laser Engraving Machine, 6.3 x 5.5 in Engraving Area, Manual & Auto Focus, DIY Engraver Tool, for Wood AcrylicDual-Laser Portable Laser Engraver, Easy to UseDual Focus ModesHigh Precision PerformancePowerful Cutting CapacityWide ApplicationsComprehensive ProtectionLaser Spot Size: 0.08 x 0.06 mm (Blue Laser), 0.03 x 0.03 mm (Infrared Laser),Laser Class: Class 4,Focusing Method: Manual Focus & Auto Focus,Effective Working Area: 6.3 x 5.5 in / 160 x 140 mm,Item Model Number: Nano Duo,Laser Power: 20W Blue Laser + 2W Infrared Laser,Engraving Speed: 10000 mm/s,Laser Wavelength: 455 nm (Blue Laser), 1064 nm (Infrared Laser)