This device generates low-frequency signals of 1-500 [KHz] and flows current through the human body using abdomen and low-frequency pads to reduce muscle pain. Various automatic modes are included to adjust frequencies/stimulation types automatically.Therefore, first-time users can use this device easily by using several buttons. Users can freely choose frequencies/stimulation types with manual modes. In addition, the abdomen pad includes thermal features that control the temperature to OFF, 30 °C, 35 °C, and 40 °C (±4 °C). When the internal temperature is overheated (60 °C or higher), the safety device (bi-metal) automatically blocks the heater power. This device is characterized by a refined and convenient design.