tion: 1. Easy to operation, 1064nm and 532nm,755nm can switch automoticly by press different button on the screen. 2. Big power supply, so the machine is powerful. 3. Can adjust the spot size when switch the head. 4. Big water tank, so the cooling system is very good. 5. Metal shell, safe during the transport. 1.Optimally targets melanin to treat a range of pigmentary conditions 2.Incurs minimal thermal damage due to picosecond pulse duration 3.Customiz`able treatments with 2-6mm, 8mm, and 10mm spot sizes 4.Lasers suitable for all skin types on most colours 5.No shots limited, use for whole life.