The Andis Cordless Pulse ZR II with Super Blocking Blade is designed for high volume haircutting on all hair types, featuring a cordless design with a removable battery for easy replacement and no downtime. Its lithium ion battery delivers up to three hours of run time on a two hour charge, powered by a strong rotary motor with five adjustable speeds from 1800 to 3800 strokes per minute for cutting wet or dry hair. The ceramic blade runs cooler and stays sharper longer, and the clipper is compatible with all UltraEdge and CeramicEdge blades.