A 7D HIFU (High-Intensity Focused Ultrasound) machine is a non-invasive,,, medical-grade aesthetic device used for skin lifting, tightening, and body contouring. It utilizes advanced MMFU (Micro and Macro Focused Ultrasound) technology to deliver precise energy to multiple skin depths (1.5mm–13mm), stimulating collagen production and fat reduction with less pain and faster treatment times compared to older HIFU generations.