Lithium Ion Performance: Advanced power, 1 hour charge, 2 hour run time (3X run time). 15 minute quick charge for over 8 minutes of use. Blades specifically manufactured for animals. Power glide blades for the most demanding fur. Exceptional fur feeding protects your pet. High carbon steel blades, self-sharpening, superior blade geometry. Recommended coats: Curly/wavy, heavy, double, silky, combo, and long hair.