he blade of this hair clipper made of high quality special steel inconjunct ion with precision work. They have undergone the most modern scientific heat treatment and surface treatment. Therefore it is sharp, wear -resistant and rust-resistant. Each clipper have undergone the determination of high voltage resistance and uses double-deck insulation to ensure safety and reliability. OPERATION INSTRUCTIONS Connect the unit to a power source of 220-240V and turn on the switch(1), for the clipper to start operating. The lateral adjusting lever(2)gives adjustment of cutting length between approx0.3and 2mm while cutting hair . The other lateral lock knob(3) is a fixed mechanism. It is used to fix the adjusting lever (2).when the knob released, adjusting lever(2) should be pressed with the thumb to avoid sudden bumping . The enclosed slide-on comb(4) can be used to increase the cutting length to about 7mm, if short hair cut and continuation of transitions are desired. The slide -on comb is bushed over the bottom blade until the limit stop and is simply drawn off after use. Protecting cover(5) is used to protect the teeth.