Braun series 9 is the worlds most efficient and comfortable shaver the intelligent syncrosonic technology delivers 40 000 cross cutting actions per minute for an outstandingly thorough shave and amazing skin comfort the series 9 shaver combines ergonomic braun design with highest braun quality syncrosonic technology quadruple action cutting system the synergy of 4 specialized cutting elements and intelligent sonic technology with 40 000 cross cutting actions per minute brauns unique c