Precision hair trimmer is an electric trimmer that can slide neatly and discreetly into the pen slot of your favorite purse for on-the-go grooming needs. Use it to tame unruly eyebrows! The precision hair trimmer will effortlessly remove unwanted hair that you do not want to shave. Directions for use: Use on clean, dry skin to remove unwanted hair. Turn the unit on and place the blade to the desired treatment area in the opposite direction of hair growth. Use the adjustable trimming comb to trim hairs to different lengths.