Ideal for precise, stable cutting. This professional taper lever provides 5 even lock settings with infinitely variable control. Thanks to revolutionary cool blade technology, the blade stays cool to the touch. Smart-clip technology means the clipper senses the resistance of the blade and increases the motor speed, so your clipper will never falter or stall. With up to 4 hours of battery life thanks to the long-lasting lithium battery. The Extreme has a wider cutting range - our blade opens more, from 0.5-3.5mm and we've included 10 attachment combs ranging from 0.5 to 2.5mm. The blade can also be zeroed with the included tool, for extra cutting length. The smart LED display shows the time remaining and the clipper is ultra-quiet - with a noise level of less than 62dB. Can be used corded or cordless.