- This Braun trimmer's Ultra-Sharp blade gives you a smooth, consistent shave even in those tricky spots- With 40 length settings ranging from 0.5 to 10 mm, you get a barber shop style at home- It's waterproof so you can use it with foam, gel or in the shower - it's easy to clean too- With up to 50 minutes of cordless run time, there's no need to rush when you're dialling in your look- Trim, edge and add sharp, defined lines with the handy styling tools