40 Intensity Levels - Each output has 40 intensity levels, especially output A and B output intensity can be individually adjusted. This means that when you select a mode, you can set two different intensities. This device can meet your different parts of the body and your pain and fatigue needs to the greatest extent (generally, the output intensity of other brands should be the same). At the same time, you can adjust the time 10-60 minutes (default time: 30 minutes). High Quality Reusable Electrodes - These electrodes are reusable and have a unique shape that fits any part of the body. Multiple levels and modes: Twelve (12) high-frequency massage stimulation modes to help adapt to the different muscle groups in your body; including back, knees, elbows, shoulders, hands, legs, feet, etc. Designed for mobility: Taking into account your lifestyle, our ...