The Philips Norelco OneBlade is a revolutionary new electric grooming technology designed for men who wear facial styles, beards, or stubble. OneBlade trims, edges, and shaves any length of hair. The unique OneBlade shaving technology integrates a fast moving cutter (200x per second) with a dual protection system to give you an efficient comfortabe shave on longer hairs. OneBlade does not shave too close, so your skin stays comfortable. The replaceable OneBlades last up to 4 months*.*For best shaving experience. Based on 2 full shaves per week. Actual results may vary.