World’s most efficient electric shaver . Efficient, close and gentle, for a flawless shaveBest efficiency: 5 shaving elements get more hair in one stroke than any other shaversBest for gentleness: sonic vibrations glide over your skin for maximum skin comfortUse wet or dry. Now with 20% more battery powerProduct designed, engineered and made in Germany. Recommended by GQ and the Skin Health Alliance accreditedTested on 3-day beard vs. leading premium tier products. vs. previous Series 9"