The Series 3 340s-4 shaver is incredibly easy on the skin. Wet & dry, it can be used in the shower with a shaving foam or gel.This model is equipped with SensoFoil and a system of individual floating heads that guarantee great comfort. With its LED display, you can monitor the battery level. All that, plus it only takes 5 minutes for this shaver to fast charge. Allow an hour for a full charge.