The product produced only a few hertz frequency electromagnetic waves. The frequency of ultrasonic and infrared beyond the range of human hearing, and all the wave power is extremely small, so absolutely harmless to human body, if harmful, it will not be ultra-low frequency therapeutic equipment, ultrasonic therapeutic apparatus and infrared therapeutic apparatus and other medical equipment out. By the Beijing Municipal Bureau of specialized labor protection authorities detected Conclusion: This product can be generated by physical fields harmful to humans.