The Philips HC9450/15 is for men who have a keen eye for detail. It has 400 length settings with 0.1mm between each setting. Choose the length by setting it via the touchscreen on the handle. Use 1 of the 3 comb attachments and swipe to the desired length between 0.5 and 42 millimeter in one smooth move. When turning the device on, the selected length is locked so that you can start cutting. You don't have be afraid to accidentally swipe to a different length while cutting. This device is also suitable for coarser hair: the turbo function automatically provides an extra boost to easily cut through coarser hair. Which one of the 400 settings did you use last time? Luckily, you don't need to remember this yourself. The Philips HC9450/15's memory function does it for you.