Panasonic ES-LT4B Waterproof Men's Electric Shaver & ER-GN30 Wet & Dry Electric Facial Hair Trimmer Bundle SetPanasonic ES LT4B Waterproof 3 Blade Men's Electric Shaver By 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