This model has ultra high speed engraving low power consumption, good laser quality, high efficiency, easy maintenance, etc. Characteristic:A. German laser diode pump 3000Hz,spanlife is 25000hours and almost maintenance freeB. 1 mins for a 3D portrait inside the 50X50X80mm crystalC. Most precise marking with extraordinary beam qualityD. Small volume: 850×7300×650mm and for mobile useD. Lowest ...