Why Do Cell Phones Cause Interference with Speakers?

Most people think of cell phones as the latest technological marvel that they simply cannot live without. But what you may not know is that this little device can do all sorts of things that are starting to come to light, including the fact that cell phones can actually interfere with other electronic devices. The article will expound more on why Do Cell Phones Cause Interference with Speakers?

If you want to know why cell phones can cause interference with speakers, you’ve come to the right place!

Before we dive into what causes cell phone interference with speakers, let’s take a look at how the technology of your cell phone works. A cell phone works by transmitting radio waves from a cell tower.

The radio signals are bounced back to our phones and are then sent through the air to our phones. This type of transmission is called “cellular” because it passes through the air like a cell.

The electromagnetic waves that are emitted by your phone are actually electromagnetic waves, not visible light. This is why it is so important to keep your phone away from any metallic objects to avoid “reflected” radiation.

Now that you know what a cell phone is, let’s take a look at why they can interfere with your speakers.

Why Do Cell Phones Cause Interference with Speakers?

Related Article: Do Speakers Affect Wifi?

What Causes Cell Phone Interference?

The radio waves emitted by your cell phone will interfere with the speakers of your stereo system if they are in close proximity. This is because the speaker may sense these electromagnetic waves and change its output accordingly.

And while we don’t know a whole lot about how exactly this will affect your music, it could potentially result in a poorer sound quality and less volume.

What about Bluetooth?

While Bluetooth does not emit any radiation, it is also transmitting radio waves through the air to your speakers. The difference between Bluetooth and using a cell phone is that Bluetooth has built-in protections that reduce the amount of interference it may have on other devices in the surrounding environment.

How do you avoid interference with speakers?

If you want to prevent cell phone interference, then make sure that your phone stays at least three feet away from any electronic equipment. That way, any electromagnetic waves cannot reach or bounce off of nearby metallic objects to cause interference with your speakers!

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What Is the Correct Way to Use a Cell Phone?

Cell phones should be used at a distance of 1.5 inches or less to the ear, and never in contact with your body.

The most common mistake is to keep your cell phone near your head for extended periods of time without realizing it. Electromagnetic waves, however, can pass through. This is why it is so important to keep any electronic devices away from your head and body.

The RF waves that are emitted by a cell light up the brain’s hypothalamic gland and can even change blood flow in the brain, which has been linked to cancer development (due to increased exposure). Be sure that you’re not keeping your phone close to you and always remember to use it as little as possible!

How To Protect Your Speakers From Cell Phone Interference

Cell phone interference with speakers can be a major issue for some people. This happens because your cell phone is sending out electromagnetic waves that are interfering with your speakers.

If you want to protect your speakers from cell phones, there are a few things that you can do:

Keep your phone away from any metal objects (which will cause reflection).

Keep your phone away from other electronic devices such as radios or televisions.

Make sure that the antenna of your phone is pointing in a different direction than any of its other antennas, which will reduce emissions resulting in less interference.

Is Cell Phone Interference with Speakers Dangerous?

Cell phones can interfere with other electronic devices, and it is not always a bad thing. Cell phone interference with speakers is usually harmless, but there are instances where the radiation emitted from your cell phone can be dangerous.

A speaker that has an internal amplifier or audio system can be damaged by the waves emitted by a nearby cell. If you are in a meeting and someone’s phone goes off, you might notice that their speaker suddenly cuts out.

Similarly, if you are at a concert or in the theater and your friend texts, you’ll notice that the person’s text message notification tone will disrupt any entertainment going on around them.

One of the most common occurrences of cell phone interference with speakers is when someone talks on their phone while listening to music over Bluetooth headphones.

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The radio waves emanating from the cell phone will create electromagnetic interference and stop your Bluetooth connection from working properly. This type of interference usually won’t damage either device (unless they are too close together), but it will make it difficult for both to work properly.

Why is Cell Phone Interference with Speakers a Problem?

This is because the frequencies that are being emitted by your phone can disrupt the sound waves that are coming from your speaker.

So what can you do to stop this from happening?

One way to solve cell phones interfering with speakers is to use an RF filter, which will block out any of the signals that come from your phone.

Another way to solve this issue is to place speakers away from most people and then have them face away so that less people will be able to see their screens.

The last suggestion for solving this issue is to place a shield between the screen and anyone else who would be looking at it.

This can work well if you have speakers close together in front of you but not behind you where someone else could be looking at your screen or vice versa.

How is Cell Phone Interference With Speakers Different From Radio Frequency Interference?

Cell phones emit radio waves, which can interfere with other electronics devices. Radio frequency interference is a little different from cell phone interference with speakers. But, before we explain this difference, let’s see how a speaker works.

The speaker in your home is designed to produce sound when the molecules in the air vibrate and send signals back to the speaker.

The speaker then converts these signals into sound waves that you can hear. Radio waves are sent through the air to the speaker and then bounce back to your phone. This type of transmission is called “cellular” because it passes through the air like a cell.

Now let’s look at what causes cell phone interference with speakers. When you use your phone near a speaker, you may be transmitting electromagnetic waves from your cell phone that will disrupt this cellular transmission going on between the phone tower and your phone. This electromagnetic wave disruption causes interference with speakers.

Humming sound in mobile phone

The humming sound in your mobile phone is usually caused by the magnetic field of the speaker. Mobile phones are also susceptible to this because they use speakers and transmit electromagnetic waves, which can interfere with your speaker.

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This interference with your speaker is why you may hear a humming sound when you are talking on the phone close to your stereo system or other electronic devices. You’ll also notice this hum if you’re holding the phone close to a computer monitor, an electric typewriter, or any other form of electrical equipment.

So how do you fix this problem? The best way to avoid it is to keep your phone away from anything that emits electromagnetic waves. Keep it at least one foot away from speakers and other electronics that produce electromagnetic waves like a computer monitor or TV set. The less disturbed electromagnetic waves will be, the less likely it will cause interference with anything else.


Can a cell phone interfere with more than one speaker?

Yes. It’s a scientific fact that any appliance that transmits electromagnetic waves can interfere with other devices

Will speakers always be affected by my cell phone?

No, the electromagnetic waves from your phone will only affect speakers if they are within 5 meters of the device.

Why is Cell Phone Interference with Speakers a Problem?

Cell phone interference with speakers is a problem because the waves that are emitted by your phone can cause distortion in the audio of the speaker.

How do I fix this problem?

Keep your phone away from other electronic devices! If you must use it near electronic devices, turn off your device’s antenna or put it on airplane mode.


It’s not just your speakers – many people are experiencing interference in the form of buzzing, humming and even crackling sounds that are coming from their cell phone.

But here’s the good news: there are ways to keep your speakers interference-free.

To minimize interference, put your cell phone on airplane mode or turn off the radio on your phone (depending on your phone model). You can also purchase a speaker that is made with a special material that blocks cell phone frequencies.

You might also want to consider investing in noise-cancelling headphones or earbuds to reduce outside noise.

And last but not least, don’t forget to turn off your cell phone before you enter a movie theater or any other performance space.