It is a battery-powered pulsed electromagnetic device with an operation unit, sized 18cm x 27cm. The device emits continuous 8Hz output signal. It works with 4pcs standard or rechargeable batteries. The magnetic field intensity measured on the surface of the device is 190 microtesla. This device is recommended for individuals who lead a stressful life, feel less energetic and who want to improve their overall well-being.