With first-line brands, regular brands, in line with charging standards (such as Qi) there is no danger of electric shock!
But this matter has to continue to say: in the consumer field only immature products, no immature technology, the first-line brand wireless charger is certainly not dangerous, after the radio frequency equipment out, have to go through the government's radio management committee or the relevant departments of the Ministry of Industry and Information Technology to do evaluation.
And if you want to ask whether wireless charging products have potential harm to the body, as a communications veteran of more than ten years, I can responsibly tell you that as long as the radio waves have an impact, on the degree of damage, the power is larger than the power is small, the frequency is higher than the frequency is lower (except for the visible band below the ultraviolet band). Specifically for wireless chargers, although according to relevant data, its operating frequency is 100 kilohertz to more than 300 kilohertz, the power is about 5 watts, and the new may be more than 20 watts (which is not small), but any equipment has out-of-band radiation (not detailed). Just keep the pregnant woman away.