the plug-in hair tools consists of a shell such as a movable push-tooth adjusting handle and electrical components installed in the Shell, moving up and down adjusting rod;
  use the adjustment key or screwdriver to adjust the "ten" hole on the side of the body to maximize the sound. After the cutter head swings normally, reverse the sound slightly to the appropriate state. Do not adjust it too small, too small and insufficient power;
  there are several holes behind the lower cover of the fuselage, one of which is blocked with a small black plug, pick out the small plug with a needle, and then tighten some screws with a screwdriver. 2. The sound is too loud and very harsh. In this case, the voltage is generally too high. The voltage solution under adjustment: A. Please cheer up the cutter head before power on;
  use the adjustment key or screwdriver to adjust the "ten" hole on the side of the body, slowly reduce the sound to the appropriate state, and do not adjust too small. If the adjustment is too small, the power is insufficient. 3. The vibration is too large, and the vibration is numb. This situation is that the power is too strong, or some customers have less strength and are not suitable for the solution: A. Hold your hands behind the fuselage, do not hold them on the head, generally, the motor is installed on the head, so the head vibrates more;
  use the adjustment key or screwdriver to adjust the "ten" hole on the side of the body, slowly reduce the sound to the appropriate state, and do not adjust too small. If the adjustment is too small, the power is insufficient. 4. The small blade will fall off during haircut. This situation is that the tongue with the small blade is short. Solution: A. Remove the blade and there are several holes behind the lower cover of the fuselage, one of them is blocked with a small black plug, pick out the small plug with a needle, and then twist the screw with a screwdriver. We can see that the tongue becomes longer, and then install the blade.