electromagnetic protection devices
A frequency is a measure of how often a wave vibrates. The human body, for example, vibrates at a frequency of approximately 28 Hertz (Hz).
Electromagnetic radiation is present in our environment and has the potential to cause harm to our health. The health risks of using a cell phone are highest when using a cell phone next to a wireless modem, Wi-Fi router, or other wireless device that emits high levels of electromagnetic radiation.
What is electromagnetic radiation?
protective pendants