Product manual:Just install the guide comb on the blade according to the length you need,Press the power switch on the main body to turn on the fader,Cut the hair to the correct height by moving the fader backwards.Equipped with 4 attachment guide combs: 3/6mm, 9/12mm, follow the contour of the skin to follow the comb to make it safe, easy and comfortable. The ceramic blade cutting system perfectly retains 0.2 mm of residual hair, resulting in a better haircut effect.The package includes:1 x electric clipper1 x USB charging cable1 x cleaning brush1 x user manual4 * Limit comb (3mm/6mm, 9mm/12mm)