With up to 150,000 cutting actions per minute, the Philips Norelco Dual SteelPrecision blades shave exceptionally close. The intelligent sensor reads facial hair density 500 times per second and auto-adapts cutting power for an effortless and gentle shave. Philips Norelco shaving heads are surrounded with ComfortGlide rings, a special protective coating with skin gliding properties, to shield your face from irritation.** Get a convenient dry shave or a more refreshing wet shave with gel or foam - even in the shower. Shave for up to 60 minutes on a 1-hour charge - that's about 20 shaves - with the powerful Li-ion battery. A 5-minute quick charge gives enough power for one shave. Includes: Norelco Electric shaver, travel case and power cord The intelligent sensor reads facial hair density 500 times per second and auto-adapts cutting power for an effortless and gentle shave.