... 3. Pad with heating function; 4. Wide carrier frequency. The features:1.Mode of therapy: IFC,IFCW,PMC ... specifications:1.SINGLE output style.2.Carrier frequency: 2kHz,3kHz,4kHz,5kHz3.Interferential wave type: ... sine wave4.Frequency range: 1~120 Hz5.Treatment time: 0 ... /min,30 times/min,60 times/min,combination11.Frequency sweep modes: 1/f,15 secs,30 secs,60 ...