Principle
Ultrasound means high frequency that we can't hear with our ears, and the ultrasound of 1.5MHz and 1MHz ranges has used as medical ultrasound in this product.

Low Frequency
It is said that 1~1000Hz is used for a low frequency, and 1000~10000Hz for a medium frequency. This product outputs the medium frequency of 4KHz range that leads to a minimized skin resistance, and uses interferential and premodulated functions performing soft stimulation without electric prickling of the existing stimulator of a low frequency.

Interferential
Interferential comprises 2 channels, each of them is a sine wave, one uses a fixed frequency, and the other uses a variable frequency. The mutual cross of channels of a fixed frequency and a variable frequency makes 2 waveforms being interfered or overlapped so that a new beat frequency moves as much as the difference of a frequency in the inner part.

Premodulated   
Premodulated, having done amplitude and modulation of a sine wave, uses a SWEEP frequency of 1~148Hz by using a basic frequency of 4KHz between PAD(+) forming the low frequency Anode(+) and PAD1(-) and PAD2(-) forming the low frequency Cathode(-).

Composition
It features storage space that can store each channel in the inner part when a cover is opened in the form of a bag, and an operating unit and the coupling connection terminal of each channel in the front.