R4 Titanium Rotary with Pivot and Flex Technology Shaver with 3 Flexing heads and a pivoting neck contour to angles on the face jaw and neck for a close clean and comfortable shave; Titanium-Coated Blades; Dual-Track Cutters; Pop-up Trimmer; LED Battery Fuel Gauge; Rinseable Design; Worldwide Voltage; Cord/Cordless Use with up to 40 Minute Runtime 90 Minute Charge Time and 5 Minute Quick Charge.