It can be said that any substance has radiation, and electronic devices are even more so.
The following is some knowledge of radiation, just for your reference:
There are two types of radiation sources, one is a natural source of radiation, and the other is man-made sources of radiation.
The sun is the largest natural source of radiation received by humans. The energy we receive from the sun is mainly visible light, infrared, far infrared, and ultraviolet. Because of the distance between the sun and the earth, the intensity is greatly reduced. Stronger electromagnetic radiation is also produced by thunder in the sky, earthquakes and volcanic eruptions. Some cosmic objects also emit x-rays and gamma rays to the Earth. Some minerals on Earth, such as granite, can also emit gamma rays. The human body is also a small source of radiation, the human body radiation electromagnetic wave frequency distribution is mainly infrared and far-infrared, the wavelength of 5.6-12 micron range.
Man-made sources of radiation, including radio, television, navigation, radar, wireless communications and other transmitting equipment, as well as high-voltage power transmission sites. There are also widely used high-frequency electric industrial equipment, such as high-frequency plastic heaters, high-frequency melting furnaces, high-frequency welding machines, high-frequency quenching machines, high-frequency deoxidizers, and radiofrequency sputtering instruments are all sources of high-power electromagnetic radiation. Hospital and home use of nuclear magnetic **** vibration instrument, physical therapy, microwave therapy and other medical equipment is also a large and small sources of electromagnetic radiation.
In addition, household appliances working in the industrial frequency and radio frequency range, such as refrigerators, washing machines, dishwashers, vacuum cleaners, hairdryers, electric mattresses, televisions, home computers, microwave ovens, and cell phones, etc., are on your side of the electromagnetic radiation sources.