Descriptions: A slider-type positioning comb that locks haircut lengths from 0.7 to 21 mm and supports one-button adjustment for easy operation. The hardness of ceramics is 1.6 times that of ordinary stainless steel. The surface smoothness is smaller than that of stainless steel. Therefore, when the hair clipper is running at high speed, the noise generated by the ceramic cutter heads will be lower and it will not be easy to generate heat. Working noise is less than 55db. ESM is the brain of ENCHEN products. It has two large modules of energy management and motor mastering, which can guarantee high speed operation and no stucking hair when the battery is low. During the charging process, the ESM will activate multiple guarantees to extend battery life and ensure safe charging. In addition, Boost's indicator system can accurately display the status of low battery, charging, and full power. The parts that contact the skin with the cutter heads and the positioning comb are rounded to ensure safety and comfort during hair cutting. The hair clipper heads consists of a movable cutter and a static cutter. It can safely contact the cutter heads at any angle during the working process. Package includes: 1*ENCHEN Boost Hair Clipper Set