Philips Series 5000 Beard TrimmerKey Features With BeardSense Technology, our trimmer scans your beard density 125 x per second to boost power in denser areas Self sharpening metal blades deliver added strength for maximum precision as you trim, staying as sharp as day 1 with no blade oil required The trimmer's Precision Dial has 40 length settings in 0. 2 mm steps Our innovative hair collector efficiently catches up to 80% of trimmed hairs*, giving you less hassle as you trim.