The Penta Power Tags are complementary: they each have a specific area of usage.
The most elementary usage is shielding electromagnetic radiation at the source. That is why it is a good idea to begin with the use of a Penta Power Phone Tag on all your wireless appliances: mobile phone, smartphone, WiFi router, laptop… In this way you stop the most acute source of radiation.
Additionally you can wear the Penta Power Pendant to strengthen your personal energy field. You can also add the Penta Power Home Tag to raise the energy in your home and protect the inhabitants against any radiation from outside. Without the Phone Tags it is a little like trying to ‘mop up whilst the tap is still running’.