Flag is a professional app to work with multiple smart devices, supporting and combining VMESHOU Smart Abdominal Massager 3.0 and smartwatch. Flag assists users in managing and controlling VMESHOU Smart Abdominal Massager 3.0 by adjusting seven modes, including opening acupoint mode, enhancement mode, closing acupoint mode, acupuncture mode, dredging mode, supporting Yang mode, and conditioning mode. accurately adjust the temperature, the frequency and pressure of Zhongwan, as well as pulse intensity. It keeps you motivated while exercising, helps to build healthy lifestyle.