The main danger of wireless headphones is that they emit electromagnetic waves near the human brain.
The statement came from Alexander Timofeyev, associate professor of computer science at the Plekhanov Russian University of Economics, Gadin.Net reports.
According to the expert, this is especially true for non-original devices. They can cause hearing and vision problems.
In addition, scientists have repeatedly warned about the risk of cancer in wireless headphones.
To check the safety of the device, Timofeyev suggests putting the phone on the ground and walking a certain distance with headphones connected to it. If the signal weakens within a few meters, then the headset is safe.
According to the expert, the standards of different countries provide for the certification of devices with different levels of radiation.
At the same time, Bluetooth technology is considered reliable, so it is widely used around the world.