About the Phillips Norelco Multigroom 5000 All-in-one trimmer for face, head and body styling: 18 pieces for all your trimming needs Enjoy maximum precision with Dual Cut technology, which includes 2x more blades. The steel blades lightly brush against one another - sharpening themselves as they work. This results in blades that are sharp as day 1 after 3 years of use. Powerful lithium battery delivering 3 hours of cordless run time. Or use while plugged in for continuous use. To deliver maximum torque and power, the trimmer includes a full-metal motor and a drive train that's been reinforced with tempered steel. Our unique cutting guards are reinforced with ultra-strong fiberglass material to prevent bending and buckling, ensuring an even trim every time.