Fast shipping from Germany. The laser come with it's own neje and benbox 3c frimeware flashed on it. So if you want to use with Lightburn or any gcode sender, you need to flash the system with grbl 1.1f, and make a major setup changes in the grbl setup after it, for working properly, like homing functions and proper x-y coordinates . I use with MacBook and Lightburn, and it took 3 days tries and errors to finaly make it. The customer service was responded quickly, so they are helpful. But if you want to do serious work not just laser picture via blotooth, you need to dig into the grbl system profiling and know all well...Im happy with the purchase, the 30 w laser powerfull enough to cut 3mm-4mm plywood in 2pass 100% power 150mm/sec speed with a proper focus.