Use Steps: (1): Remove excess hair by shaving, epilating or waxing the area before the first treatment. (2) First plug in the power and turn on the machine; select the gear; for the first use, it is recommended to start slowly from the low gear to the appropriate gear. (3) Please put the laser head on the skin, after the energy indicator flashes, press the launch button to complete the operation; move to the next part and continue the operation. (4) After turning on the machine; short press the emission button for light emission operation, long press the emission button for automatic / manual light emission mode switching. (5) After treatment, moisturize your skin with some lotion. How often to use the hair removal? 1-4 weeks: 2-3 Times a week. Over 75% hair starts to fall off naturally. 5-6 weeks: Twice a week. New hair falls off and is inhibited. 7-8 weeks: Once a week. Hair becomes thinner and less. Over 8 weeks: Once per two week. Use the device based on the growing state of hair. Note: For the first use, it is recommended to start slowly from a low gear to a suitable gear. Do not use laser hair removal on scars and moles, otherwise it will be dangerous. Keep away from direct sunlight after hair removal.