Comfortable clean shave with Skin Protect technology with this Philips Norelco Shaver 2400. ComfortCut Blades are engineered for a consistent clean shave. Use wet and dry, 40 minute run time and a pop-up trimmer included. 4D Flex Heads - The shaver heads flex and float in 4 directions, adjusting to the curves of your face for smooth skin contact without a lot of pressure.