The V-643 professional clipper trimmer set has a self-test function to ensure that the machine can be detected at the first sign of a malfunction, avoiding more serious damage and enhancing safety. The motor is powerful, with a speed of up to 5,500-7,000 rpm, which greatly improves the feel of cutting and makes cutting smoother. The new technology blade retains the hardness and enhances the toughness, longer service life, goodbye to frequent replacement of the blade. Different lengths of guide combs, adapting to different hair lengths, easy to create the right hairstyle for yourself.LED display shows the remaining power, speed, travel lock and oil, machine status at a glance. Long press for three seconds can turn on the travel lock function, power saving and safety.USB rechargeable, and charging and plugging, as long as there is a USB port, no power can also work immediately.4 hours or so of battery life, perfect for long distance travel with, say goodbye to power anxiety.