Panasonic ES-LT4B Waterproof 3 Blade Men's Electric Shaver/nBy integrating the rapid linear motor from top-tier models and a beard sensor, the ES-LT4B-A811 guarantees accurate and comfortable shaving on a daily basis. With the ability to move in two directions (left and right), its head, combined with three independently floating blades, remains in close proximity to the skin, minimizing the need for excessive pressure and reducing the likelihood of skin irritation. With 3 Durable Stainless Steel Blades for Precise & Comfortable Shave Everyday. Combining high-end models' ultra-fast linear motor and beard sensor ensures precise and comfortable daily shaving. 2 directional (left & right) movement of the head and 3 individual floating blades stay closer to the skin without having to press hard for less skin irritation. All blades and foils are made of surgical grade stainless steel based on the art of the Samurai sword-making tradition, we've developed Panasonic's sharpest inner blades that are nano-sharpened to just 30 degrees. And durable stainless steel foils are designed for years of gentle shaves. This means they can cut the thickest stubble efficiently with a minimal number of strokes, so the burden on the skin is minimised. For a shave that is personal to your facial contours, stubble thickness and density, the ES-LT4B uses responsive beard sensor technology.