Andis Professional Cordless Envy Lithium-Ion High-speed powered battery for robust and long-lasting power. Features up to 2 hours of run time and charges in 90 minutes or less. Weighs less than 10 oz., perfect for all day, ergonomic use that won't weigh you down. Cord/Cordless operation for reliable power to last you all day long. Adjustable Blade Clipper. Andis Lithium ion battery delivers up to 2 hours of run time with a 2-hour, 15 minute charge time. Improved motor for increased speed, power and life. Balanced, ergonomic trimmer for light-duty touch-ups and trimming around necklines. and bonus KEPSE Neck Duster to enhance your shaving experience.