The Master® Cordless Lithium-Ion Clipper is Andis top of the range professional clipper for superior haircutting results, In addition to corded use, the Lithium-Ion battery allows for over 90 minutes of cordless use on a single charge, and an LED light shows the power charge during use as a handy indicator of battery levels. Incredibly fast blade speeds of over 7,200 SPM with no dragging, snagging, or slowing down!