For a close shave without irritating your skin, the Super Stubble has a flexing head. It tracks contours so you can trim every last inch of your face, jawline and neck and won't have to apply any uncomfortable pressure. And since the blades are electro-chemically formed they're sharp but skin-friendly. For an extra smooth experience, you can always use the foam or oil because the trimmer's 100% waterproof. It makes clean-up a breeze too - just rinse the hairs off.Good to know- To really dial up your designer stubble, you can make ultra-precise 0.2 mm adjustments from 0.4 mm up to 5.0 mm- You'll never shave off more than you bargained for - a digital display helps you keep track of things- No matter your hair type, precision-engineered Japanese Steel blades will make short work of it- The 70 min battery should give you a full working week of trims and touch-ups to keep you looking smart- There's a 5 minute quick charge for last-minute emergencies