ComfortCut Blades engineered to glide smoothly over skin Get a clean shave that's comfortable on your skin. Rounded blade caps shield 27 self-sharpening blades to gently cut hair just above skin level and help the shaver glide smoothly over your skin. 4D Flex Heads follow your face's contours for a clean shave Experience a convenient clean shave with heads that flex and float in 4 directions. The head adjusts to the curves of your face, ensuring smooth contact with your skin without a lot of pressure. Pop-up trimmer for mustache and sideburns Finish your look with the built-in trimmer. Its ideal for maintaining your mustache and trimming your sideburns. One-touch open for easy cleaning Clean the shaver with ease. At the touch of a button, flip open the shaver head and rinse with water. 45 minutes of cordless shaving from a 1-hour charge Up to 45 minutes of cordless runtime - that's about 15 shaves - after a 1-hour charge. Or plug it in for instant, continuous power. Corded and cordless use Shave exactly when you want with the shaver that's ready when you are. Use cordlessly or plug it in to shave when the battery is empty.