It features an automatic sharpening system with power cut blades (27 blades) for a sharp shave. The 4D flex head conforms to the contours of the face for a close and gentle shave. It is IPX7 waterproof, and the body can be washed, making it easy to clean. It supports USB charging, and a 1-hour charge provides approximately 45 minutes (or approximately 60 minutes) of cordless shaving. A pop-up trimmer for trimming sideburns, etc., is included. Type: Men's electric shaver/beard trimmer