... 3,Safe and effective device. 4,CE,RoHs,FCC 3 in 1 Multifunction Portable Ultrasound and LED Skin Rejuvenation Equipment. Brief description ... 3M Hz ultrasonic,galvanic and photon therapy ,the machine CM-7 is mainly used as the basic treatment for face.It ... acid action with the functions of tranquilizingnerves, dropping blood supply in skin, strengthen the fiber tissue of skin, shrinking pores ...