... 1-9 minutes. 4.With bi-helix magnetic therapy under field effect, Bluelight Magnetic Therapeutic Apparatus takes ... effect by using the body-like spectrum electrotherapeutics and the helix magnetic field ... Lung, Arrhythmia, Hypertension, Menopausal Syndrome, Diabetes, Strengthen the body, prevent the disease, headache, Lumbar Sore, Coxitis, Near-Sightedness ...