Floating beard: Floating beard/Cleaning brush/USB line 3 in 1: Floating beard/Trim sideburns/Trim nose hair/Cleaning brush/USB line 4 in 1: Floating beard/Trim sideburns/Trim nose hair/Deep cleanse brush/Cleaning brush/USB line 9D Independent Floating Cutter Head The product has 3 independent floating cutter heads, which increases the shaving area by one third compared with ordinary double-headed shavers to adapt to different contours. Ultra-thin Double-ring Knife Net The knife net and blade are designed with double rings, which greatly increases the contact between the knife and the face, and its beard feed is twice that of the ordinary single-ring knife net, which improves the shaving efficiency, faster and cleaner. Upgraded LCD display One-key lock/battery capacity/charging indication, understand the power incompatible withmation, and avoid the embarrassment of power failure in the middle of shaving. Different cut heads A set of unlocking 4 major grooming functions----floating beard, trimming temples, deep cleansing, trimming nose hair. Waterproof/ Wet / Dry The entire body of this electric shaver is washable, allowing you to enjoy a comcompatible withtable dry shave or a refreshing wet shave, with shaving cream or gel compatible with easy operation.