1. EMS technology is the bionic micro-current stimulation technology, which stimulates the muscles to exercise voluntary contraction through the "biological current" nature of the human body and its close micro-current. 2. Two-way compression to give proper pressure to the waist. Provide lumbar support during exercise 3. It is flexible and comfortable to wrap. Wrapped around the waist, it is soft and comfortable without collision. Bi-directional pressurization provides proper pressure on the waist and provides waist support during exercise. 4. No gel patch is needed. Active molecular silica gel is used, which fits the skin very well. It does not consume the gel patch and can be dried with water. It is very durable. 5. 360 ° fully wrapped, shaped massage. 6. 6 gears, 9-level intensity, timing function, automatic shutdown, multiple functions are complete. Specification: Style: USB charging models Material: active molecular silicone Colour black Weight: 210g