Do Microwaves Interfere With Bluetooth?

I’m sure you’re encountering for the first time or several times how your Bluetooth devices tend to get interfered with when close to a working microwave.

And you’re here to find out if there’s something wrong with either your microwave or Bluetooth device.

Then you’re definitely at the right place, as this article will take you through all you need to know about Bluetooth being interfered with microwaves.

Yes, the operations of a Bluetooth device can interfere with the microwave. And when that happens, two factors could be considered as being the cause of the interference.

Firstly, it could be there’s leakage with the microwave. And this normally happens with old or faulty microwaves—secondly, the difference in these two devices’ power output (power signals).

There are always two schools of thought anytime this issue of microwave interfering with Bluetooth comes up.

And one thing most people forget to realize and conclude is that both could be the cause. And it doesn’t necessarily mean the cause of the interference should be just a single factor.

So let’s look at how both factors can cause the operations of Bluetooth devices to have interfered with a running microwave.

How Does Leaking Microwaves Interfere with Bluetooth Operations      

This is very well understood when the microwave’s mechanism is well grasped.

This is what happens with the operation of the microwave. Food and water substances in the microwave are not heated by the electric energy the devices are powered with.

The electrical energy supplied to the microwave is converted to radio waves. These waves move around in the microwave (sealed metal box) and later react with the food in the microwave. This causes the water molecule in the food to vibrate to generate heat.

The microwave radiations which act on the food substances are meant to stay in the inner metal sealed part of the microwave where the food is and not to leave there.

These radiations in a way get their way out of the microwave. And this leaking is very common with old and faulty microwaves.

And that’s a result of some weary parts that develop when the microwave is old or gets abused, which allows the microwave radiation to sneak its way out.

Newly purchased and well-functioning microwaves have an inbuilt mechanism called the Faraday cage, which is purposed to shield the microwave from radiation leaks.

But trust me, per several pieces of research on this Faraday cage, they aren’t as effective as we mostly perceive them to be.

So with that, we can say even newly purchased microwaves will still have some small leakages.

But those leakages wouldn’t be able to cause that much interference unless the Bluetooth device happens to be very close to the microwave.

One other thing that can cause the leakage of microwave radiation is poor shielding.

The usage of the microwave frequency band is abused, as one does not need to obtain any license to use it. And because of that many companies tends to manufacture poorly shielded microwaves, knowing they won’t be checked.

How Does Leaking Microwaves Interfere with Bluetooth Operations      
How Does Leaking Microwaves Interfere with Bluetooth Operations      

How Does Power Output Difference Make Microwaves Interfere with Bluetooth Operations

Unlike microwaves, Bluetooth devices use a transmission technology, the Frequency Hopping Spread Spectrum (FHSS). Which has one of its main focuses is to avoid interference.

Though Bluetooth doesn’t pose any radiation interference threat to devices around but for its low power output, it can easily be interfered with by a high power output device.

This generally means that Bluetooth devices like Bluetooth headphones have very weak signals. Hence they are easily pushed aside by much stronger signal devices, like the microwave.

Aside from the signal strength of these devices, we can also consider the distance between the devices in question, the microwave, and Bluetooth devices.

The distance between these two devices also greatly affects how the microwave can interfere with the operations of Bluetooth.

The interference effect is greater when the distance between the devices is very close. And vice versa, the interference effect is minimal when the distance between the devices is reasonable.

That said, we can say the weaker the Bluetooth signal and the closer the microwave was, the greater the effect of the interference between them.

Can Microwave Damage Bluetooth or Wireless Headphones

You might be experiencing some abnormalities with your headphone when you get close to a powered or running microwave and wondering if you’ll be able to use your headphone again. You’re not alone in this, as we’ve all had our fair share of this ordeal.

No, your headphone isn’t damaged. And your headphone can’t be damaged by a powered microwave.

When you get closer to the microwave with wireless headphones, there’s interference.

And because of that, it becomes so hard to use the headphone as you should normally use them.

So to get your wireless headphone back in shape as they used to be, you just have to get away from the microwave.

What caused the interference was that both the microwave and headphones work in the same frequency band.

In general, with the interference between microwave and headphones, there’s no damage done to either device but rather to the signals.

Can Microwave Damage Bluetooth or Wireless Headphones
Can Microwave Damage Bluetooth or Wireless Headphones

I think the only way the microwave can damage your headphone is when you decide to put the headphone inside the microwave and turn it on. Aside from that, the microwave can’t damage your headphone.

Can the Microwave Be Prevented From Interfering With Bluetooth?

Yes, preventing the microwave from interfering with Bluetooth devices is possible. And as we are well abreast with, in all situations, to find a solution, you must first comprehend the actual cause of it.

The first place to start is to know which of the above-stated factors is causing the interference in your case.

If your microwave is old and faulty, the best thing to do is to get a replacement, as there’s no way to stop the leakage.

You might get a repairer that will be able to convince you how best he or she can stop the leakage, but you won’t succeed.

So to avoid any extra spending, just get a new microwave. And you can check out some cost-effective microwaves here.

Aside from your microwave being old that would require a replacement, with all other factors, all you’ll need to do is to allow some distance between the two devices.

If you happen to be using the microwave in the kitchen, it will be much advisable to keep the other wireless or Bluetooth device away from the kitchen.

And in other instances where you will need the wireless or Bluetooth device, in the kitchen or wherever the microwave is, you can build a small wall between the two devices.

And that will prevent the microwave radiations from getting to the wireless or Bluetooth device.

Can Microwave Interfere With Wireless Devices

The operations of wireless devices, like Bluetooth devices, can be interfered with by microwaves.

This happens especially when the microwave and the Wi-Fi happen to be on the same frequency band.

And with that, there’s a possibility that the microwave is having a leakage issue, that’s its leaking microwave radiations, which intend to interfere with the signals of the wireless device (or Wi-Fi).

In the case of Wi-Fi, there are several frequency bands that you can switch or upgrade to.

So in this instance, where the microwave is at 2.4GHz and the Wi-Fi is also at the same 2.4GHz, all you need to do is upgrade the Wi-Fi to 5GHz. And with that, you’re good to go.

And if you cannot upgrade to a higher frequency band, you just distance the devices, as we’ve already discussed.


Bluetooth and Wi-Fi are often interfered with by running microwaves, especially when they are in the same frequency band, and there’s a kind of leakage on the side of the microwave.

When that happens, you check to see if the microwave’s leakage results from weary parts, as it’s old.

The best solution to this is a replacement. In other cases, you will just have to distance your other Bluetooth or wireless devices from the microwave.

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