The long and short stethoscope app uses a variety of indicators, colors, and graphical presentations to let you quickly judge long and short. Novices do n’t need any foundation. As long as they understand the numbers and pictures, they can quickly find out the entry and exit points, and do not miss any entry opportunities . [Advantage] Graphical indicators, buy at key entry points As long as you can understand the numbers and pictures, you can judge the ups and downs at a glance [Simple] Det