The dangers of earphones and bluetooth headsets

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Bluetooth headsets are currently the most popular choice for listening to music, making hands-free phone calls and any other digital communication that requires both talking and listening, and their popularity has increased significantly in recent years. The convenience of these wireless devices is irresistible to many; no wires get in your way, and you don’t have to talk directly into your phone when you make calls. Studies have suggested that the radiation you absorb when talking on your phone with a Bluetooth headset is less than talking with your phone up to your head. But how accurate is this data, and does it mean that this popular technology is safe?

Studies have suggested that the radiation you absorb when talking on your phone with a Bluetooth headset is less than talking with your phone up to your head. But how accurate is this data, and does it mean that this popular technology is safe?

How Bluetooth works ?

Bluetooth technology works by emitting wireless microwave radiation from a transmitter in the base device to a receiver right next to the headset or earphones in your ears. Bluetooth headsets use short-range signals in the 2.4 Ghz band, the same spectrum as WiFi and microwave ovens. This is a higher frequency than the spectrum in which cell phones operate.

Most Bluetooth wireless headsets are considered Bluetooth Class 2 devices, with an output power of 2.5 mW and a range of 10 to 20 meters. However, be aware that some of the newest headsets on the market, such as Apple AirPods and Beats headphones, are sold as Bluetooth Class 1, with a much more powerful 150-meter transmission range. Class 1 devices operate at 100 mW, which is 40 times more powerful than previously popular headsets!

There is a widespread assumption by the telecommunications industry and researchers that since wireless technology, including Bluetooth, is considered non-thermal and non-ionizing, its radiation is harmless. As a result, industry safety standards focus entirely on keeping their devices below a certain level of heat absorption effect on the body that someone declared to be safe about 20 years ago. This means that the device heats up the nearby tissue a lot. This standard is called SAR (Specific Absorption Rate).

Not only are the thermal effects not even close to the most dangerous aspect of wireless radiation, but many independent researchers believe that the SAR rate is still set far too high to protect health! Many people can tangibly feel the thermal effect of their mobile phone when they talk with their phone next to their head. Many people will experience an obvious thermal effect, and it’s not uncommon to have a headache on the side of the head where the phone is held, which disappears shortly after moving the phone away – or, more tellingly, the headache changes sides when you move the phone to the other side of the head!

Chronic long-term exposure so close to the brain

The industry claims that the radiation power of Bluetooth is too low to be harmful to health. However, weak electromagnetic fields have been shown to be detrimental to health, especially when exposure is of long duration and constant, and in close proximity to a vital organ. This is exactly how Bluetooth headsets are used. No one buys a helmet to use only occasionally or for short periods of time. They are more likely to use it daily, sometimes for long periods of time.

This chronic use, and the location of the signal receptors being as close as physically possible to the inner ear and the brain, is problematic. The telecommunications industry claims that the body absorbs only a fraction of the radiation from Bluetooth headsets compared to what a cell phone emits, but Dr. Joel Moskowitz says that in reality, due to the much greater proximity of the inside of the head, Bluetooth can affect the head specifically at one-third to one-half the level of a cell phone! It’s not as safe as we were led to believe.

Therefore, the proximity combined with the more chronic exposure levels, as people tend to use their headsets considerably more often than holding the phone to their head (especially when listening to music), and the dangers of radiation exposure using wireless headsets most likely outweigh the dangers of using your cell phone.

It gets even worse if your phone is placed anywhere against your body while you are using Bluetooth (or any headset), such as in your pocket. When your phone is actively transmitting information to a headset, wireless or not, it emits much more radiation than when it is not in use.

As reported in Renal and Urology News in 2009, a study conducted by the Cleveland Clinic’s Reproductive Research Department showed that a cell phone in a man’s pocket, in talk mode and transmitting to a Bluetooth headset, caused a significant reduction in the motility and viability of sperm exposed to radiation, as well as an increase in free radicals. In recent years, more than a dozen studies have been published by other groups that support the Cleveland Clinic’s findings.

Are the wired helmets better ?

The answer is yes and no. The problem with wired headsets is that the wires act like an antenna, amplifying the radiation from your phone directly into your head. In addition, wired headsets emit their own radiation, independent of your phone.

Using your phone’s speakerphone option when making a call, when possible, is a safer approach than Bluetooth or wired headsets. Also, if you use a headset, make sure your phone is not held against your body, for example in your pocket.


We have established that wired and wireless headsets are risky choices for your health. The degree of risk has yet to be established, but we think it is better to play the security card than to get tested yourself! Radiation exposure to the head has been linked to cancer, autism, brain tumours, premature hearing loss, hair loss and a weakened blood-brain barrier.

It is therefore important to adopt proactive and preventive measures when using them. This includes the use of Clean-Waves / BodyGuard technology, the only effective protection available on the market. (the only internationally patented technology that has proven its effectiveness).