The 4 in 1 function system ELTK-172 includes Ultrasonic, Diamondabrasion and the Hot & Cold Hammer Therapy. The Diamondabrasion can be used to exfoliate your skin by utilizing a mutli-degree diamond tipped wand through continuous scrubbing and vacuuming to the topmost layer of the skin. The Ultrasonic function of this machine can be used for eye,facial and body treatment to penetrate water soluble products into the skin. The use of Ultrasonic waves can help to diminish fine lines and wrinkles, and also to provide elasticity to the skin. The Hot & Cold hammer therapy can help to open and close the pores before and after the treatment, and can be used to calm the skin after exfoliation. The ultrasound probe for the body is not included in this system.