3-Handle Body Sculpting & Muscle Relaxation All-in-One 3D Rotary Negative Pressure Vacuum RF Machine Working Principle of the 3D Rotary Vacuum RF System Rotating Handle (Rotation + Heat): A constant-speed rotating probe with mild heat eases soft tissue tightness and relieves stiffness in the shoulders, neck and full body. 360° Negative Pressure Rotating Handle (Negative Pressure + Rotation + Heat): Skin lifting, fascia stretching and thermal action work together for