SainSmart NEW Upgrade USB Cutting machine Engraver Blue laser 2000mv + 2A Power The laser engraving area: 69*68mm Low-light positioning, grey engraving and reset function No requirement for the size, cuft and weight for the engrave items Engravable material:wood,bamboo,plastic(phone shells),leather(such as wallets),cardboard Do not need tedious operation as other engraving machine,no need to generate G-code, just open the p