If you think this is just bunk, and you'd like a laugh, read the FAQs on the website [1]...
My favourite:
>Does the device remove the EMF from the environment? If so can I use a meter to measure EMF?
>>The 'electro magnetic meter' can only measure the intensity of radiation which is not changed by our technology nor does it change the quality of connection and speed of data transfer.
Well, that's convenient, isn't it?
>>Our device harmonises all harmful frequencies into life affirming frequencies - it doesn't block - it transmutes.
I note there is no mention of which frequencies are 'harmful' and which are 'life affirming' - which would be even more useful given the frequency range of a WiFi or Cellular device, so you'd know which is which...
>> The only methods that we know can measure the difference between imbalanced radiation (without protection) and balanced radiation (with protection) These positive test results can be found on our website - please look for 'Case Study ' under Science and Research tab.
The Case Study starts with this paragraph:
>>In our civilization is emerging new science based on knowledge, whereas the official (old) science is based on information. We get information through our senses which are dual and deliver us an inverted picture of the truth and consequently, information is the opposite of knowledge so that all the old scientific concepts are therefore the upside down of the true concepts.
Do people actually believe this nonsense? It sounds like the kind of thing that Russell Brand was wittering about a couple of years ago - that your senses are the only way to interface with reality, and if you can't sense it it's not there, etc... Which can be disproved in seconds, even by a 10-year old child. I find it profoundly depressing when this kind of bamboozlement of the gullible is done in the form of sciency language. And it always seems to be done with a big price tag at the end of it.
[1] https://5gbioshield.com/frequently-asked-questions/