Improved Pivoting Neck: The pivoting neck allows the head of the shaver to adjust and maintain even closer contact around the chin, jawline and neck No Foam or Water Needed: Whether you want a cleaner, closer shave or you want your rugged stubble to look well-groomed, the R4 has your face covered 3 Days Stubble Styler Guard: Attaches to the head of your shaver, so you can work the ruggedly handsome look with ease Improved Pop-Up Trimmer: With Comfort Trim blades, you can take care of your sideburns, create clean defined lines around your jaw or trim back any longer hairs before your shave 2 years guarantee; plus 1 extra year when you register the product online