I recommend using special foil caps. Excellent protection against electromagnetic radiation. I even did this for a cat.
I also recommend you wearing a tin foil hat. Especially in public, so people know what they are dealing with
Just messing with ya buddy. But seriously, you are being paranoid. It is a common misconception that electronic devices, even wireless devices, emit radiation.
Technically that is called a radiation, the electromagnetic radiation and that is why this misconception exists, but this is just nothing like the radioactive radiation.
You do know that magnets emit electromagnetic radiation as well, right? And the Earth. And the Sun. And actually light is also electromagnetic radiation.
And heat as well. And lightning of course. And all of these things emit far larger amounts of radiation of a lot higher frequency (imagine it as density if you wish).
Electronic devices use this "radiation" to communicate, so they use a bear minimum, just enough to be detectable.
While many things in universe use this type of radiation to mainly transfer energy. Like a stove, fireplace, sun, flashlight.
These things emit so much pure electromagnetic energy that you can sense it yourself, that it can even burn or hurt you.
Trust me, your cellphone uses such small amounts of electromagnetic radiation that you are hurting it more then it is you.
You heat up your phone while it basically has no effect on you. Bananas also are quite radioactive. far more then most things you will find around your house.
Smoke detectors have radioactive elements actually and can be quite dangerous if you are close enough for long enough.
But of course all of this is just ridiculous compared to smoking and polluted air. You are more hurt by that one time you smelled tobacco smoke then all of these things put together. The truth is, you are far more likely to be killed by obesity then anything else. It is just that people tend to try and distract themselves in order not to do any hard work, even if that work is just stop eating once you are full.
Not a device nor terrorism nor anything else will kill people as much as obesity, smoking and cars will every single day.
Society's main problem at this age is simply greed and nothing else. Everything else is simply amazing.