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Bluetooth Score and Tests
Headphones

What it is: Bluetooth support for wireless headphones.
When it matters: When you want to connect your headphones wirelessly to a Bluetooth source, like your smartphone, tablet, PC or smart TV.
Score components:
Score distribution

Bluetooth is a wireless technology standard for data exchange between mobile devices over short-length ultra-high frequency (UHF) radio waves from 2.400 to 2.485 GHz. Headphones that support Bluetooth can connect to another Bluetooth device, usually a smartphone or tablet, and play media wirelessly. Bluetooth headsets with a microphone can take wireless calls and usually have some sort of control scheme so you can play/pause or music or accept/reject a call from your headphones too.

All Bluetooth protocols must meet the standards of the Bluetooth Special Interest Group (Bluetooth SIG), an international standards organization that oversees the development of Bluetooth technology. Therefore, Bluetooth has a number of advantages over unstandardized wireless radio frequency (RF) technologies, like lower power consumption, less signal interference, and greater device compatibility. However, Bluetooth devices require a pairing procedure that can be inconvenient and can only connect to a limited number of devices.

For our Bluetooth score, we first determine whether the headphones support Bluetooth and, if so, which version. We then look at whether they support multi-device pairing and if they can pair via NFC.

Test results

When it matters

More and more smartphone manufacturers are eliminating the headphone jack from their products in favor of a single USB-C or Lightning connector. While you can always use an adapter to connect your favorite wired headphones, there are now more reasons than ever to opt for Bluetooth headphones. Bluetooth headphones provide the wireless freedom that you might expect with RF gaming or home theater headsets without the bulky wireless stands or limited USB dongles.

Depending on your needs, there are a couple of features you might want to keep an eye out for. If you have the latest and greatest flagship device, you might want headphones that support the same Bluetooth version for better latency and wireless range performance. If you often switch between devices, like your work PC and tablet, you’ll want Bluetooth headphones that support multi-device pairing. Lastly, if you have a smartphone that supports NFC, you’ll have an easier time pairing your headphones if they’re NFC-enabled.

Our tests

Our Bluetooth tests evaluate the wireless features provided by Bluetooth headphones. Bluetooth headphones with more wireless features like multi-device pairing and NFC score higher.

We first determine whether the headphones support Bluetooth. If the headphones are not Bluetooth-enabled, they automatically score a 0 in the Bluetooth category box and all values are set to N/A. If the headphones do have Bluetooth, we determine their Bluetooth version. We then verify if they support multi-device pairing and NFC. Finally, we check to see if they’re compatible with the PS4 or the Xbox One.

Bluetooth Version

What it is: The version of Bluetooth that the headphones support.
When it matters: Newer versions of Bluetooth, when paired with devices that support the same version, may have improved latency and wireless range performance.

Bluetooth versions vary from headphone to headphone and come with a suite of features that improve the data rate of transmission, battery life, or add additional codecs to reduce lag and latency. All Bluetooth standard versions support downward compatibility, which means that a smartphone running Bluetooth 5.0 will still work with headphones that are Bluetooth 4.2 and vice versa.

To test the Bluetooth version, we consult the headphone’s documentation to confirm the Bluetooth version, whether through product manuals, specification sheets, or simply checking the box. In the case that we can’t confirm the Bluetooth version with the information provided with the headphones, we consult the vendor page of the retailer we purchased the headphones from to see if there is additional information online. If we still can’t determine the official Bluetooth version, we make an educated guess based on the headphones’ release date, features, and device compatibility and specify in the review text that we couldn’t actually confirm the information.

It is worth noting that the Bluetooth version itself does not factor into the final Bluetooth score due to the potential difficulty in confirming the version information.

Multi-Device Pairing

What it is: A Bluetooth profile that allows some headphones to be simultaneously connected to multiple Bluetooth sources, and have full call and media support on both/all devices they are connected to.
When it matters: To quickly switch between your Bluetooth sources. For example, switching from your phone to your home or work PC and still have call and media support on both devices.
Good value: 2 devices.

Multi-device pairing allows you to connect your Bluetooth headphones to multiple Bluetooth devices with full, simultaneous functionality on each source. Bluetooth headphones with multi-device pairing can connect to a Bluetooth-enabled laptop and smartphone at the same time and play media as well as take calls/use the microphone on both devices simultaneously. Some headphones support partial multi-device pairing, which means they can play and control audio on one Bluetooth device and use the microphone to make phone calls on another. We don't currently test for partial multi-device pairing, though, so it's not accounted for in our score.

To test multi-device pairing, we attempt to pair and connect the headphones to two separate Bluetooth devices (currently two Android phones). We then test both media playback and microphone control channels on each device to ensure all channels work simultaneously on both devices.

Note that the multi-device pairing test does not account for headphones that can mix audio from Bluetooth and another RF wireless source – it is exclusively for multi-device pairing via Bluetooth.

NFC

What it is: Near Field Communication technology that allows you to quickly, pair your headphones with your Bluetooth and NFC-enabled device.
When it matters: This makes pairing with an NFC-enabled device a lot easier than the typical and often tedious hold-to-pair procedure that most wireless headphones have.
Good value: Yes

Most headphones use a typical “hold-to-pair” procedure that can get a little tedious, especially if you often switch between Bluetooth devices. Thankfully, some headphones use NFC is to quickly and efficiently transmit pairing protocols and connect and NFC-enabled device without too much hassle.

Like with Bluetooth Version, the NFC version is deducted via the paperwork that comes with the headphones. Usually, there is an NFC logo on the box, instruction manual, or even on the headphones themselves. If an indication of NFC compatibility is present, we attempt to pair the headphones with an NFC-enabled device to confirm proper functionality. If we cannot confirm whether the headphones support NFC or not, we indicate what we believe to best of our judgment and specify in the review text that the information could not be confirmed.

What is not included

There are a couple of elements that we don't test for explicitly. These elements include:

  • Proximity pairing (Google Fast Pair, Apple iCloud proximity pairing).
  • Partial pairing (split channel compatibility with different Bluetooth sources).
  • Objective testing for Bluetooth version and NFC compatibility.

If you feel there is an item missing that should be included, please let us know in the Discussions below.

Conclusion

Bluetooth is a wireless standard that lets you connect your headphones to your mobile device without the need for cables. Our Bluetooth score lets you know whether a pair of headphones support Bluetooth or not and how feature-packed their Bluetooth support it. Different Bluetooth versions have different advantages in respect to latency and range and some Bluetooth headphones can even connect to multiple devices or pair via NFC. If you often switch between Bluetooth devices or have a new smartphone with a recent Bluetooth version or NFC, it can be helpful to know which Bluetooth features a pair of headphones have so you can get the most out of your wireless listening experience.

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