2-in 1 good intensity focused ultrasound, the foundation of which focuses ultrasound on the tissue layer for precise treatment of mechanical thermal effect with no stress to the surface and good safety performance, is the basis of HIFU.
 
In order to precisely target energy on the epidermis, fascia, and collagen layer, the 4D uses probes of varying depths (1.5mm, 3.0mm, and 4.5mm); the 4.5mm probe is positioned in the subcutaneous fascia layer, which produces protein coagulation reaction, creating tension around the coagulation point as the center and exerting tension on the fascia. 3.0 mm acts on the subcutaneous collagen layer to stimulate collagen regeneration, which can gradually tighten and improve skin and restore elasticity; facial wrinkles caused by sagging; one operation, comprehensive facial synthesis. Muscle layers grow and pull to achieve the best effect of shaping, lifting, and tightening. Tighten and lift the entire contour.
 
Privacy is the use of different depths (3.0mm, 4.5mm) of the treatment head, precise energy focused on the vaginal collagen layer, fascia layer, and the use of machinery to produce an effect of about 60° to 70°F, which encourages the contraction of the fascia and the regeneration of collagen fibers in the deep mucosa of the vagina, which in turn promotes the production of new, tender tissue. The dryness and astringency of the vagina encourages the release of vaginal mucus during sexual activity, maintaining vaginal wetness and softness. primarily for the total treatment of vaginal tissue rupture, injury, dryness, urine incontinence, relaxation, and other problems, causing the body to begin the repair of regenerative cells.
 
The goal of reducing and resolving vaginal relaxation is finally accomplished. 
To get the best effect of vaginal contraction, private functional instruments extend the probe into the vagina through the operator and uniformly operate 54–216 lines (about 1350–5400 points) in the SMAS layer of the vagina.