- Tidy up your stubble or beard with 0.4 mm - 5 mm cutting lengths- You've got the freedom to move about thanks to the cordless design with up to 5 hours of battery- It's 100% waterproof, perfect for use in the shower or a quick clean-up at the sink- In a rush? A 5-minute quick charge gets you enough for a single shave- The Japanese steel blades give you a sharp and precise cut