Heavy Duty Motor Our ultra-power heavy duty hair trimming system easily cuts the thickest hair with 35 percent more power than standard Wahl electromagnetic motor clippers, This results in a very strong audible hum, but is completely normal to its operation. Dont settle for a weak clipper. | | Self-Sharpening Blades Wahls precision self-sharpening precision blades stay sharp longer and continuously sharpen over time; oil between every few haircuts to increase the longevity of your electric clipper motor and blades | | Adjustable Taper Lever Easily change the closeness of your cut between guide comb lengths, move the lever up for the closest cut and move it down for a longer cut; allows for easy transitioning of blending and fading | | Matching Trimmer The Chrome Pro comes with a full-size hair clipper for men with a variety of cutting lengths with a precision t blade and a matching chrome trimmer that helps clean up around the neckline, sideburns, and the ears | |.