Myths and Facts: Can Bluetooth Be Dangerous?

Myths and Facts: Can Bluetooth Be Dangerous? post thumbnail image

Bluetooth technology has been with us for a long time – and some of the myths about this wireless connection have been around for at least that long. First and foremost, there is the fear that Bluetooth headphones are harmful and can cause illness. We’ll get to the bottom of this and some other Bluetooth myths.

To understand: How does Bluetooth work?

Bluetooth is an important and widespread radio standard, along with WiFi. It is installed in many devices of all manufacturers and functions in this way: for example, if you connect your smartphone to a Bluetooth speaker, the two devices communicate via high-frequency electromagnetic fields. This is where “Bluetooth radiation” originates. Devices exchange data wirelessly through this very stable connection – usually only over short distances.

How far the Bluetooth signal reaches depends on the transmission class. Ranges of 5 to 30 meters are achieved in Classes 2 and 3. This standard is built into most devices – such as Bluetooth headphones, speakers, wearables or most smartphones. With Class 1, distances of 100 meters or more are possible.

Is Bluetooth Radiation Harmful Now?

In our daily lives we are almost constantly surrounded by electrical radiation, also known as electrosmog. Bluetooth also contributes to this. However, the radiation emitted by traditional Bluetooth devices is much less – for example, less than the radiation emitted by a smartphone or WiFi router.

SAR – unit of measurement for electromagnetic radiation

The unit of measurement used to assess how strong the emitted radiation is Specific Absorption Rate (SAR), It indicates how much radiation the human body absorbs. Of course there are rules and maximum values. These come from the Federal Office for Radiation Protection and state that 0.08 watts per kilogram of or up to total body weight 2 watts per kilogram Locally harmless to individual parts of the body. The latter refers to the head, for example.

How high is the radiation of mobile phones and bluetooth headphones?

SAR values ​​for some smartphones can be checked here federal office for radiation protection, Here are some concrete examples:

  • Huawei P30: SAR 0.33 on ear, SAR 0.85 on body
  • Apple iPhone 11: SAR value 0.95 on ear, SAR value 0.99 on body
  • Samsung Galaxy S10: SAR value 0.48, SAR value on body 1.59

Apple Airpods – one of the first true wireless in-ear headphones – have Class 1 transmission power, thus a higher range and an even SAR value than smartphones, i.e. 0.466 watts per kilogram. Which is still well below the 2 watt limit. Most other Bluetooth headphones are transmission class 2 or 3 and therefore cost much less.

All-Clear: Bluetooth Headphones Aren’t Dangerous

As you can see, all these devices move in harmless territory. Bluetooth devices with Transmission Classes 2 and 3 always remain below recommended maximum values ​​due to low transmission power – this all-too-obvious given by the Federal Office for Radiation Protection. In fact, you’re actually doing yourself a favor if you use Bluetooth headphones instead of a mobile phone to your ear – for example, with our true blue With built-in hands-free kit.

Der Real Blue NC hat ein Ingebout Freiprechinreichtung.

Avoiding Too Much Electrosmog: Tips for Radiation-Detox

So, we can completely clarify for Bluetooth: You don’t have to worry, it’s not dangerous to use Bluetooth headphones. However, the German Federal Office for Radiation Protection generally recommends minimizing electromagnetic radiation around you. We can’t practically avoid electrosmog – but as always, the remedy is decisive. Some of the most important tips include

WiFi routers should be installed in areas where no one spends a long time in the immediate vicinity.
Unused devices or transmission functions such as Bluetooth, WiFi or even mobile data should be turned off.
At night, the smartphone should not be placed directly next to your head or, best of all, in the bedroom at all. Tip, if you use your mobile phone as an alarm clock: Set flight mode at night.

Bluetooth Speakers from Teufel

Bamster Pro - Portable Lotstrapture MIT Bluetooth

Other Bluetooth Myths

The claim that Bluetooth headphones are harmful isn’t the only myth circulating about Bluetooth—here’s a selection of other claims about the transmission standard

Bluetooth cannot transmit through walls: This myth can only result from the limited range of the Bluetooth connection. It is true that thick walls are a hindrance that can limit the quality of the connection. But as soon as you disappear behind a wall, the connection is not interrupted immediately. More important with Bluetooth is the distance between paired devices.
Bluetooth and WiFi cannot be used together: both transmission paths actually use the same radio frequency band to send data. However, there are several channels on this frequency band that can be used by Bluetooth and WiFi. The technologies are now intelligent enough that they can constantly search for a free frequency and switch back and forth if things get tight somewhere. So you can use Bluetooth and WiFi at the same time without worrying about radio interference.
Bluetooth uses battery power continuously: In the early days, Bluetooth drained your phone’s battery relatively quickly. Fortunately, technology is evolving. With newer Bluetooth versions (we’re currently on Bluetooth 5), you don’t have to worry about a permanent Bluetooth connection draining your battery. For example, if you’ve paired your phone with your in-ear headphones, the only time the battery will drain is when you connect and play music. If the headphones are muted, the Bluetooth connection will also be turned off.

Bluetooth Headphones for Unrelenting Music Enjoyment

bluetooth cofferer teefel AIRY
AIRY impresses with its lightness and strong sound.
  • I airy: On the couch or on the way to work – listen to music wirelessly and with ease. The AIRY is hardly noticeable due to its notably lightweight and is also very comfortable to wear for long periods of time: also due to the surprisingly clear music playback. AIRY is equipped with Bluetooth aptX for the best sound quality.
    I move bt: Do you want to listen to music, especially during the game, and if possible without tangled strings? Then the MOVE BT Wireless In-Ear Headphones are the right companion for you. According to IPX5 they’re lightweight, yet strong, and splash-proof – a rain shower or sweaty workout won’t damage them.

Teufel. K and Headphones

Conclusion: The Radiation From Bluetooth Headphones Isn’t Harmful

  • Manufacturers of Bluetooth devices must adhere to certain maximum values ​​for emitted electromagnetic radiation.
  • The Bluetooth radiation emitted by headphones is so low that it is completely harmless.
  • You get more radiation when you talk with your phone to your ear than when listening to music with in-ear headphones.
Header image: © Emily Morter. Quayle: unsplash

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