How do Bluetooth Headphones Work

Your guide

Michael Gray

Michael Gray

Michael has been writing about consumer technology for over a decade. He usually writes about headphones & other gadgets.
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Almost all of us use Bluetooth headphones for our media consumption. Have you ever given a thought to check out how exactly do Bluetooth headphones work? A unique and easier form of Wireless audio, the Bluetooth Headphones have been one of the best innovations that the mankind has had.

Let us try to understand a little more about the Bluetooth technology in Headphones and ho Bluetooth headphones work. We will also check out a few options to make your Bluetooth headphones work a little better (or should we say sound better?)

What is Bluetooth?

Bluetooth technology

Before we can explore how do Bluetooth headphones work, it should be a good idea to understand what makes a Bluetooth technology what it is. Let us check out the technology behind those flashy headphones that you wear. 

Bluetooth is a technology or the wireless data standard that we use for the short range wireless communication. What makes it one of the best alternatives to other options available for the wireless communication is the low power requirement that the technology comes with. Since the battery life is an important factor in a smartphone scenario, Bluetooth should ideally be the preferred mode of communication.

Ever changing technology behind Bluetooth Connectivity

Initially launched with support for mono audio transmission, the Bluetooth technology has been developed through successive years to become one of the prime modes for the short range wireless communication. 

A2DP was a huge invention in that direction. A2DP is a Bluetooth profile specifically launched with the aim to provide stereo audio communication over Bluetooth. It decides the codecs used for the communication from your device to the Bluetooth headphones. The profile balances the power requirements and data usage depending upon the actual usage pattern. 

Several other technologies were added later on to improve the Bluetooth connectivity performances. Some prime examples can be HSP (Headset profile) and AVRCP (Audio Video Remote Control Profile). The latter is designed to provide you access to the control on playback functions remotely. 

How do Bluetooth Headphones Work?

Well, Bluetooth headphones, as we already discussed, will connect through a specialised network od devices. The complete setup works through a host of different components that work together to provide you with a faster and reliable connectivity.

The network

Bluetooth work network

This is the major part of the functionality of the Bluetooth connectivity of a Headphone (or for that matter, any Bluetooth connected device). Both your device and the headset create a localised wireless network so that they communicate with each other without the tangle of wires and cables connecting them. 

The Bluetooth headset and the device to which it is connected work in a dual mode. They work as a transmitter and a receiver simultaneously. The signals between the two connecting devices would be completely different from the other wireless signals around, as they are configured with a complex algorithm. 

The Bluetooth device requires to be connected to a primary device referred to as the Parent Device. You should be able to connect multiple devices to a single parent device, but the connected devices cannot communicate with each other.

Under ideal circumstances, the maximum number of devices that can be connected to a parent device ranges up to seven. However, in the case of Bluetooth Headphones, we can only expect a one to one communication in most of the cases.


headphones pairing with iPhone

This is an important prerequisite to work with a Bluetooth headphone and transmit the signals from your smartphone to the headphone. They need to be connected to each other through the means of authorisation on your part. An information link is established between the headphone and your smartphone or any other compatible device. 

This process of forming an information link between your headphone and the smartphone is referred to as Pairing. You need to have both your devices turned on their Bluetooth connectivity functionality and should be configured to be discoverable by the other Bluetooth devices within the network range.

Bluetooth headphones normally have a Pairing PIN that needs to be entered on your smartphone when prompted. This provides an instruction to the parent device to establish a connection with the headphone. 

Bluetooth headphones normally have a Pairing PIN that needs to be entered on your smartphone when prompted. This provides an instruction to the parent device to establish a connection with the headphone. 

Read this to learn how to pair Bluetooth headphones in Windows 7.

The Power

Well, like with any other equipment you have been using, Bluetooth headphones to need the power to drive their mechanism. That is what should ideally be a difficult scenario for the Bluetooth headphone manufacturers.

If the power requirements are really high, you may end up with a need for a battery that is too large or heavy.

Wearing such a load on your ear would be something impractical and stupid, right? That is precisely why the Bluetooth headphones do not come with a battery – at least during the initial stages.

bluetooth-headphones using batteries

Most of the headphones use the power from your smartphone to drive the mechanism. However, technology has become advanced enough the successive generations and you would no find Bluetooth headphones with their own batteries as well. 

The frequency used in the Bluetooth headphones and the short-range communication would make it possible to draw the considerably lower amount of power. The recent advancements in the technology have made it possible to restrict the power requirements still lower than the previous generations of the Bluetooth headphones. 

How To Make Bluetooth Headphones work Better?

No matter whether you are looking to make your conversations on your phone completely hands free or normally on the move, you would expect your Bluetooth Headphones to work in a better manner offering you a better reception. How would you be able to do that? We will explain a few options for the enhanced audio quality on your Bluetooth headphones. 

1. Check Out The Configuration

Bose Wireless headphones

Well, that isn’t something technical we are talking about. Let us begin with the easy way. Ensure that you are wearing the earcups meant specifically for the correct ear.

What we mean by that is wear the earphones with the right orientation – the one marked RIGHT on the right ear and the one with LEFT on the left. In many cases, this may not make a difference, but when you are listening to the stereo music, you would indeed want to listen to it exactly the way sound engineers planned it to. 

2. Placement of The headphones

The correct placing of the headphones on your ears – whether opting for in ear or over the ear options – should have an impact on the quality of music. Move them a little lower or higher and adjust it properly. Check the differences in a cautious manner so that you would make a considerable difference. 

3. The Location of Parent Device

The location of the parent device and its distance from you can have a good deal of functional difference in terms of the quality of sound you would get.

Check the range of your headphones from the official site and stick to what is mandated. Avoiding any obstacles between your smartphone and your headphones can also help you improve the sound quality. Instead of keeping it in a bag, you can keep it in front of you or as much close to your headphones as possible. 

4. Do Away With the Interference

Remove any other devices that emit the radiations or signals. These can interfere with your Bluetooth communication and make your headphones sound a little awkward. Turning off all the nearby radios can be quite helpful. 

5. Metals Can be a Spoilsport

Metals can have a serious impact on the Bluetooth reception and transmission. Make sure that you do not have any sort of metal elements around your Bluetooth transmitters and receivers. There can be a few simple elements that can have a huge difference. Even a clip or case can considerably affect your reception capabilities.

Those were a few simpler triggers too improve the performance of the sound quality on your Bluetooth headphones. 

The Parting Thoughts

Well, Bluetooth headphones have been a boon for many of us for a variety of reasons. However, most of us possibly not aware of how does a Bluetooth headphone work. We assume we have been able to drive home the basic functionality and working of a headphone with a Bluetooth connection. 

We would also assume that the tips offered for enhancing the signal quality of your headphones should provide you with an input into how to tune your Bluetooth headphones for a better reception and an outstanding sound quality. 

Make use of those tips and share your thoughts with us. 

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