The Kenchii Flash Dog & Cat Clipper is both elegant and functional. It has a 5-speed smart motor with Smart Clip Technology, which means that it senses blade resistance and increases the motor speed when needed! The lithium ion battery can last for up to 6 hours and the voltage automatically switches between 110v and 220v. And you'll always have clear visibility to what's going on thanks to the Smart LCD display. You will be able to see the speed, battery life and alerts that you know when the blades need to be cleaned!