Bluetooth profiles and protocols tell us what a Bluetooth device is able to do. Does it stream audio? Can it manage telephone calls? Here is a quick guide to help you choose your Bluetooth devices.

Understanding Bluetooth Profiles

If you want to buy a Bluetooth device, you need to know what it can and cannot do. Can it payback stereo audio? Does it have audio and playback controls? Bluetooth profiles and protocols provide us with that information. So, before you buy that next Bluetooth headset or speaker, here is an explanation of the profiles and protocols you should look for on the box.


What is a Bluetooth Profile?

A Bluetooth profile defines the functionality that a device supports and can execute when it connects with another by Bluetooth. If both devices support the same profiles, then you are able to use and enjoy the features or functionalities that profile specifies.

Where only one device supports a particular profile, you will be unable to use the associated functionalities, because the other device is unable to communicate at that level.


There are four main Bluetooth profiles, as follows: HSP (Handset Profile), HFP (Hands Free Profile), A2DP (Advanced Audio Distribution Profile), and AVRCP (Audio/Video Remote Control Profile). Let’s explore them to understand the features they each support.

Bluetooth profiles are those required for typical, mono Bluetooth headset operations; A2DP and AVRCP are important for stereo headsets.


Understanding Bluetooth technology

Bluetooth Profiles: What Is HSP?

HSP (Headset Profile) is one of the most common Bluetooth protocols and makes two-way audio communication between a headset and a phone possible. This is the default profile that Bluetooth headsets use.

Note though that it enables only mono audio on headsets. It does not support stereo audio. A Bluetooth wireless headset that supports only HSP is good for basic telephone calls and nothing else. It can’t play music from your smartphone and can’t be used to control audio volume.

Is same as Mi Airdots and Redmi Airdots

HSP is the Bluetooth profile supported by the most basic and the cheapest Bluetooth headsets around. All you can do with them is take and receive telephone calls.

Bluetooth Profiles: What Is A2DP?

A2DP (Advanced Audio Distribution Profile) is a Bluetooth protocol that enables a headset to stream high quality stereo audio wirelessly from a smartphone or other compatible device. The quality of the audio is much better, both for calls and for music playback.

If you want to buy a Bluetooth headset for listening to music from your phone, make sure that your devices specifications lists A2DP as a supported Bluetooth profile.

Bluetooth Profiles: What Is AVRCP?

AVRCP (Audio/Video Remote Control Profile) is the Bluetooth profile that enables remote control functionality. By way of example, it lets a Bluetooth headset control media playback on your smartphone. Those Bluetooth headsets and loudspeakers that let you pause and resume music playback support AVRCP.


havit bluetooth wireless speaker

Bluetooth Profiles: What Is HFP?

HFP (Hands Free Protocol) is a Bluetooth profile that enables a two-way wireless speaker-phone to be used with a Bluetooth phone, and is usually found in Bluetooth hands-free car kits. This is like a twin sister to HSP Bluetooth protocol and on its own supports mono audio.

As a matter of fact, both HSP and HFP are the two most common Bluetooth protocols and you probably do not have to worry much about a headset supporting them. As such, when shopping, depending on your needs, the profiles to watch out for are A2DP and AVRCP.

Do not forget: if your Bluetooth accessory does not support a particular profile, even if your smartphone does, you will not be able to enjoy the features of that profile on the accesory in question. For example, if a headset does not support A2DP, you will be unable to listen to music from your smartphone on it. You will only be able to take and make telephone calls on it.

TWS i7s Mini Bluetooth Headset


Understanding Bluetooth Versions 4.0, 4.1, 4.2, 5.0

Simply put, the higher the Bluetooth number, the faster data can be transferred, the more secure it is, and the less power your device consumes to maintain a connection. So two Bluetooth 5.0 devices can create a more secure connection between one another, transfer data faster, and last longer before needing their batteries recharged.

What is Bluetooth Low Energy or BLE?

Bluetooth Low Energy (BLE) is not a Bluetooth profile. It is a light-weight connection that consumes much less power than regular Bluetooth. It was developed by Nokia.  introduced as part of the Bluetooth 4.0 core specification. It is used for connectivity with wearables and other gadgets that connect and talk to modern smartphones.

As such, BLE is widely applied for health care, sports and fitness, Internet connectivity (you knew that you can share your phone’s mobile data with other devices via Bluetooth; didn’t you?), proximity sensing, alerts and time profiles, among others. When your smartwatch connects to your iPhone or Android smartphone, Bluetooth Low Energy is the culprit.


That is the simple, layman’s explanation of Bluetooth profiles and standards. Where cost permits, always go for devices with all the Bluetooth profiles and with the latest version number.

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This Post Has 8 Comments

  1. Thank you for this piece. I’ve just archived this writeup. I need to reread over and over till I master and memorize these acronyms and terminologies. I wish the same could be done as regards network categorization: 2G, 3G, 4G, HSDPA+ bla, bla, bla.
    Thank you, once again, for this.

  2. Thanks for this article. I found this more useful, especially for someone like me. Now I understand the kind of Bluetooth device to go for. Before now, I always thought all the Bluetooth devices offered the same work, but now, I know better.

  3. My headphones support a number of these profiles, but the trouble I’m having is that I need a bluetooth adapter for my pc in order to use my headphones wireless function, and I can’t tell which adapters are HFP, HSP, A2DP, AVRCP or BLE? I have been looking on Amazon and I have not seen this listed with any of the adapters I’ve seen. I was told by Bose the adapter had to have one of those profiles.


  4. Is there a landline phone that has bluetooth with HFP? My hearing aids will not pair with HSP. Please list any phones that has hands free profile. Thanks

  5. I’m very pleased to see this article, now I know more about how bluetooth devices works and which one to go for in other to suite my needs.

  6. LG Rebel 4 specification says Blue tooth 4.2 but no reference to Smart Ready nor BLE
    Checked the protocols. Can’t pair not bind with Smart Band on this phone. Can pair on another LG tech 21, cell phone if the computer is off. I think its Blue tooth signal is too strong as it connects to the key board and printer.
    Smart watches and Smart Bands bot listing specs (no Blue tooth standard nor protocol needed.

  7. Regarding AD2P, this statement is incorrect: The quality of the audio is much better, both for calls and for music playback.

    It isn’t possible to use the microphone AND route call audio to A2DP. The only way that is possible is if a separate microphone is used. Thus for HQ audio on, for example, a Zoom call, you’d need to listen via A2DP and use a separate microphone (e.g. the laptop’s built in mic if using a laptop)

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