SELF-SHARPENING SKIN-FRIENDLY BLADES designed to be gentle on skin require no blade oil to maintain PRECISION BEARD STYLER DIAL with 40 settings in 0.5 mm increments to craft your beard to the exact desired length and fullness INNOVATIVE LIFT&TRIM SYSTEM on adjustable trimmer combs to guide facial hair towards the blade for an even, precise trim for men 100% WATERPROOF FACIAL HAIR TRIMMER makes cleanup the easiest part of your grooming routine ERGONOMIC GRIP for easy control and comfort while styling your beard, sideburns, mustache, and other facial hair UP TO 70 MINUTE RUNTIME Li-Ion battery indicator; USB charger cable included, wall adapter is NOT included