The France Bed Sleeepy Pulse is a home-use low-frequency therapeutic device that uses electricity to move the muscles in the lower limbs, aiming to prevent muscle weakness and promote fatigue recovery. By wrapping the belt-shaped electrodes around both legs, electricity is passed through the muscles of the entire lower limbs, such as the thighs, calves, and buttocks, allowing for efficient muscle movement. Approximately 70% of human muscle strength is in the lower limbs, which play an important role in daily activities such as "standing," "walking," and "sitting." The following three treatment modes are available depending on the purpose: Muscle Mode (Red): Treatment aimed at increasing muscle strength Exercise Mode (Green): Treatment aimed at light exercise Recovery Mode (Blue): Treatment aimed at fatigue recovery (I purchased and opened it, but it is a new, unused item because I have other therapeutic devices at home.)