Up to 40 mins cordless use after 10 hour charging 27 self-sharpening blades for long lasting performance Skin protection system gives you a clean wet shave that doesn't damage your skin 1-Level battery indicator to get the best from the shaver. Power Source: AC Power. Automatic voltage:100 - 240 V. Operation: Unplug before use Comfort cut blade system with 3 directional floating heads, ergonomically designed Convex shaving system Non-slip rubber handle Fully washable