... revolving and twist then produce "biology heating". High-frequency electrons produced by Radio Frequency, won't stimulate any inductive nerves, won't ... or 0.5MHz for choie, advance effect of therapy. 2) Double-frequency system: 0.3MHz or 0.5MHz for choice, aim at ... different treated parts. 3) Electronic digital control system: Adjust frequency and time, very simple and convenient. 4) Special design ...