ComfortCut Blades 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 skinExperience 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. 4D Flex Heads follow your face's contours for a clean shavePop-up trimmer for mustache and sideburns Finish your look with the built-in trimmer. It’s ideal for maintaining your mustache and trimming your sideburnsOne-touch open for easy cleaning 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 pressure40 minutes of cordless shaving from an 8-hour charge Up to 40 minutes of cordless runtime - that's about 13 shaves - after an 8-hour charge. Or plug it in for instant, continuous power