... saving, comfortWing chip design, double-sided heat dissipation, super large heat areaStandard design, internal use of carbon ... far-infrared heating technology, it issues 3-15 micron far infrared rays when heating, "warm" effect is obvious, with effect of health care/ physical therapy ... -27m2Voltage:220Frequency:50/60Time to heat: 1-3 minutesWavelength of the infrared: 3-15umSurface temperature: 80- ...