This app is used to control cm2 WEB,connect cm2 WEB through Bluetooth, and transmit and accept information through Bluetooth.We use this app to search for cm2 WEB and choose to connect a cm2 WEB. After the connection, you can control cm2 WEB to start,stop, pause, and resume through app.The working parameters of the cm2 WEB can also be set by app. When cm2 WEB is working, we can see the working time of cm2 WEB through app. After the completion of the work,App will remind users, and save the work records of cm2 WEB.We can produce a historical record of cm2 WEB through app