The 5 Star Cordless Senior is a one of a kind clipper with it's precision fade blades, metal bottom housing and cord/cordless capabilities. It's powerful rotary motor results in consistent power to tackle thick hair. The 2191 blades are adjustable with zero-overlap capabilities. The 5 Star Cordless Senior offers a high quality lithium-ion battery with 80 minute run time per charge and it's ergonomic design fits comfortably in hand for easy maneuverability.