The Philips Norelco One blade Pro is a revolutionary new electric grooming technology designed for men who wear facial styles, beards, or stubble. One blade trims, edges, and shaves any length of hair. The unique ONE blade shaving technology integrates a fast moving cutter (200x per second) with a dual protection system to give you an efficient comfort A be shave on longer hairs. One blade does not shave too close, so your skin stays comfortable. This one blade Pro features an adjustable trimming comb with 12 length settings and a rechargeable Li-ion battery that delivers one hour of constant styling power after one hour charge. The replaceable one blades last up to 4 months (For best shaving experience. Based on 2 full shaves per week. Actual results may vary.