With Precision Hair Removal Technology, it reduces the number of passes required to achieve smooth skin. The dual-speed control is great for fine or coarse hair, and the sensitive cover hides some of the tweezers--perfect for delicate areas like the jawline, bikini line, and underarms. It's also electrically operated for continuous power. The three-disc system, including one fixed tweezer disc and two that open and close to gently stretch the skin, works to increase comfort and efficiently remove hair from the root. The staggered, dual-opposed heads cover greater surface area and grasp all the hair the first time.