All of the currently used wireless data transfers technologies (listed underneath) are operating with a frequency classifying them as microwaves.
– LTE (450 MHz up to 6 GHz)
– WiFi (2.4 GHz and 5 GHz)
– BT (2.4 GHz)
– NFC (13.56 MHz)
Non-ionizing radiation --> ] ≈ 2.4 PHz (= 2.400.000 GHz) [ <-- Ionizing radiation
Those microwaves are non-ionizing radiation. They don't have enough energy to ionize atoms (change the DNA). The currenly only known effect is the generation of heat. That effect is used with a microwave oven. But the power used with a microwave oven (ca. 800 W) is way higher.