The Philips HC5612 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. Ergonomic design means the clipper is easier to hold. Up to 75 minutes of run time on a full charge. Cord/cordless operation and automatic universal voltage. The DualCut Technology blades are washable for easy cleanup under running water. Self-sharpening blades and no oil needed.