Q: How to choose the suitable machine? A: Send us the effect you want, we'll advise based on 17+ years' experience. Q: How to operate the machine? A: Detailed Manual and operation videos will be provided, easy to operate. Q: Delivery time? A: 3~4 weeks after getting deposit. Q: Warranty time? A: Machine 1 Year,Laser source 2 Years. Q: After-sale service time? A: At your working time, we have different teams covering all time zones.