●Worlds most efficient electric shaver*. Efficient, close and gentle, for a flawless shave ●Best efficiency: 5 shaving elements get more hair in one stroke than any other shavers ●Best for gentleness: sonic vibrations glide over your skin for maximum skin comfort ●PEAK PERFORMANCE: to maintain your best shave, we recommend replacing the shaver head every 18 months ●EFFICIENT SHAVING: featuring 5 shaving elements to cut through millions of hairs with ease ●PERFECT SHAVE IN ONE STROKE: with this shaver heads 5 perfectly synchronized shaving elements