VEVOR Laser Engraver, 20W Output, Laser Engraving Cutter Machine, 13.7 x 15.7 in/35 x 40 cm Working Area, 10000 mm/min Movement Speed, Compressed Spot with Eye Protection, for Wood, Certain Metal Outstanding Performance High-Precision Engraving Compatible with Air Assist Pumps Broad Compatibility User-Friendly Design Versatile Material Application Air-Assist Function: Support / Air Pump Included,Effective Working Area: 14.9 x 15.7 in / 38 x 40 cm,Item Model Number: G3,Laser Wavelength: 455±5nm Blue Light Laser,Limit Method: Limit Structure + Positioning Auxiliary Program,Computer Connection: USB Connection,Main Material: Aluminum Alloy + Spray Paint,Power: ≥ 20W,Operating Software: Compatible with LightBurn and LaserGRBL