The Philips HC7650 Hair Clipper is a zero maintenance clipper, excellent for general use. The zoom wheel provides 28 length settings 0.5mm to 28mm. Trim-n-Flow Pro Technology designed to prevent cut hairs from getting stuck within the comb for faster clipping. Features a Turbo Mode for thicker hair. Ergonomic design means the clipper is easier to hold. Up to 90 minutes of run time and it can also be used plugged in for continuous power when you need it. The DualCut Technology blades are washable for easy cleanup under running water. Zero maintenance, with self-sharpening blades and no oil needed.