Using a headset for phone calls can reduce exposure to electromagnetic waves on average by ten.

Here are the conclusions of the study conducted by the National Frequency Agency (ANFR) and relayed by 


This result is obtained if the hands-free kit is wired or wireless, according to the study made public on Friday.

The ANFR is today publishing a study on exposure to waves from a mobile phone used with a headset: this use makes it possible to reduce exposure to waves by a factor of 10 on average, compared to direct use of a mobile phone.

— ANFR (@anfr) January 21, 2022

Twelve times lower levels at member level

To carry out this study, ANFR technicians conducted 920 specific absorption rate (SAR) measurements using six headset kits (two wired and four wireless).

They also used different smartphones and navigated on different frequencies, from 2G to 5G.

Throughout the duration of these tests, all power levels were at maximum.

This was then a so-called “worst case” exposure scenario, ie very poor network quality, but which is unrealistic.

By observing the SAR measurements, it appears that exposure is nine times lower in the head and twelve times lower in the limbs when you have a kit compared to the values ​​obtained with devices without a hands-free kit.

According to the ANFR report, wired headphones therefore seem to be the best solution to avoid high SAR.

It is also necessary to ensure that you are phoning on a high-performance network, the report indicates.

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  • Electromagnetic waves

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