This laser engraving machine features the function of print carving and more practical than normal engraving machine. This mini laser engraving machine with high precision and high stability is great for DIY engraving. It supports offline operation, convenient than normal engraving machine. Offline operation: this machine supports operating without computer, only need to restore a picture and connect the two usb ports to charger or power bank(not included); one button to operate. Not included. The mini laser engraving machine has been upgraded, Glasses is replaced with protective board, safer than before, please rest assured to buy. Normally, about 3 months to 1 year, but it's also closely related to how you use it. Main factors include: temperature, time intensity, current, voltage, anti.
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