This EMS muscle building instrument has four treatment handles, which support two or fourhandles to work synchronously;It can operate two or four people at the same time. The treatment parameters of both handles can be adjusted independently; it can be operated by two persons at the same time, and can be placed in the abdomen, buttock, upper arm (biceps, triceps), thigh and other parts alone or at the same time. For those who want to quickly reduce fat and increase muscle or change their body shape, or those who have no time or difficulty in persisting in exercise, can achieve abdominal muscle vest line, peach buttocks and separated rectus abdominis for postpartum women, It can easily shape muscle and reduce fat for you, and the effect is remarkable. The device is non-invasive, safe and painless, no radiation, no side effects, no need for anesthesia, you can be thin when lying down, it can tighten muscles and lose weight, there is no discomfort during the treatment, and there is no need for a recovery period after the treatment.