Braun\'s best razor: Series 9 Pro is the world’s most efficient electric shaver (tested vs. leading premium tier products), now better with a new ProHead Efficient and gentle in every stroke, no matter if it\'s a 1, 3, or 7-day beard: championing our unique ProLift trimmer, this electric razor for men lifts and cuts tricky hair More efficient (vs. previous Braun Series 9) & gentle: the innovative ProLift trimmer and Braun’s unique Sonic Technology help to shave up to 10% faster (vs. previous Braun Series 9), for a gentle shave 50% more battery runtime with the world\'s first PowerCase: charge anytime & anywhere with this portable shaver charging case, its powerful built-in Li-Ion battery charges your shaver for up to 6 weeks of use Made in Germany & designed to last 7 years: this electric razor is also 100% waterproof and can be used with foam, gel or even under the shower