The Braun Beard Trimmer 3 BT3421 provides precise styling with 100% control, thanks to its ultra-sharp blade and 40 length settings in 0.5 mm increments. Achieve even trims and detailed finishes with confidence. The Trimmer features washable heads and combs for easy maintenance, a powerful Ni-MH battery with a 50-minute cordless runtime, and durable, ultra-sharp blades built to last.