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best bluetooth adapters

The Best Bluetooth Adapters in 2021

Author: Robert Wilson

Electronics & Peripherals Expert

Welcome to our big Bluetooth adapter test. Here we present you all of the Bluetooth adapters that we have tested. We have put together detailed background information for you.

We want to make the purchase decision easier for you and help you find the best Bluetooth adapter for you.

You can also find answers to frequently asked questions in our guide. You will also find some important information on this page that you should pay attention to if you want to buy a Bluetooth adapter.

  • Bluetooth adapter is suitable for PCs and devices that do not have an integrated Bluetooth. The adapter creates a wireless radio link between the devices.
  • With Bluetooth, various files such as pictures, videos or music can be transferred from one device to another even without WiFi. You can also wirelessly connect peripheral devices such as mouse, keyboard, headset, printer and others to your computer via Bluetooth.
  • There are two types of bluetooth adapter: USB bluetooth adapter (also called dongle) and audio bluetooth adapter.

Best Bluetooth Adapters

TP-Link USB Bluetooth Adapter

 Our Pick
TP-Link USB Bluetooth Adapter
  • NOTE: The item is compatible with windows 10/8.1/8/7/XP….
  • Bluetooth 4.0 – applies the latest Bluetooth 4.0 and it is…
  • Plug & play or free driver – plug and play for Win 8, 8.1,…
  • Nano-sized – a sleek, ultra-small design means you can…
  • Reliability – enable wireless communication with…

TP-Link USB Bluetooth Adapter is ideal for a wide variety of devices: smartphones, tablets, printers, telephones, keyboards, speakers, stereo headsets, soundbars and other devices.

The adapter achieves a long range of up to 20 meters in open space and high data rates of up to 3 Mbit / s. The device is also energy efficient thanks to the low energy mode and is compatible with the most popular Windows versions.

The model is downward compatible with all older previous versions. Buyers are particularly enthusiastic about the Plug & Play feature, which enables a quick connection.

Logitech Bluetooth Audio Adapter

Logitech Bluetooth Audio Adapter
  • Bluetooth Audio Adapter: Makes your speakers Bluetooth for…
  • Multipoint Bluetooth connectivity: Simultaneously pair your…
  • Easy pairing and automatic re pairing: Pair your device to…
  • Long range wireless: Stream music from up to 15 meters (50…
  • Works with most speakers: Plugs into any powered PC…

This audio adapter offers first-class audio quality from up to 15 meters away and is compatible with PC speakers, stereo systems and A / V receivers with cinch or 3.5 mm inputs as well as smartphones and tablets.

With multipoint Bluetooth technology, you can pair your smartphone and tablet at the same time and stream audio files in stereo quality.

The pairing connection takes place very quickly and is also automatically restored. According to numerous customer reviews, the impressive sound quality of the device is particularly appreciated.

Avantree Lock aptX Low Latency Bluetooth Audio Adapter

Avantree Lock aptX Low Latency Bluetooth Audio Adapter
  • [BLUETOOTH ALL OVER YOUR HOME] Whether you are watching your…
  • [NOT A TECHNIE? NOT A PROBLEM] Our devices feature…
  • [VIDEO RECORDING WITHOUT DELAY] Make home movies or other…
  • [BLUETOOTH REPEATER BOOSTER] Listen to your music throughout…
  • [USB POWER OR BATTERY POWER] Our Bluetooth audio adapter set…

Avantree Bluetooth adapter equips your TV, TV box, MP3, MP4, iPod, tablet, CD player and hi-fi system with the Bluetooth function of the latest 5.0 standard. This adapter with the aptX HD and aptX LL profile enables you to enjoy high definition audio and video without delay.

The device with AUX, RCA and optical audio cables can be connected in different ways. With the plug & play function, you can operate the adapter very easily.

The model does not require any driver installation. Above all, customers appreciate the large range of the 5.0 standard and a stable connection.

Frequently Asked Questions: Bluetooth Adapters

Which Bluetooth adapter do I need for my device?

When choosing a Bluetooth adapter, you should definitely check whether the adapter is compatible with your device and whether the Bluetooth generation (standard) fits.

Online marketplaces such as Amazon or Ebay often provide information on the compatibility of the devices, as well as the supported standards and possibly also indicate which drivers are required.

Bluetooth adapters for PCs should be compatible with your operating system. You can find information on the supported operating systems in the product description.

Most Bluetooth adapters are only suitable for Windows versions. For other operating systems such as Mac or Linux, it is therefore advisable to enter it in the Google search query or mention it at an electronics store.

What do bluetooth profiles mean?

Bluetooth profiles determine the type of data that can be transferred. For the successful exchange of files it is important that both devices support the same profile. Some of the most important Bluetooth profiles are as follows:

  • HSP (headset profile): fulfills the functions of the Bluetooth headset, such as the transmission of voice.
  • A2DP (Advanced Audio Distribution Profile): For exchanging music or your own voice. This profile is used in headphones, speakers, and headsets.
  • HFP (Handsfree profile): A hands-free system with a mobile phone for making calls in the car.
  • BPP (Basic printing profile): Used for printing.

What alternatives are there to a Bluetooth adapter?

Wireless USB, also called WiFi adapter, are similar to wireless near-end radio technology and can therefore be used instead of a Bluetooth adapter. This achieves a much higher speed. The disadvantage, however, is that WiFi is not available everywhere.

For comparison, you can use Bluetooth anywhere. Their range is completely sufficient to exchange some pictures or audio files or to play the Spotify playlist on the speaker. For faster exchange of larger amounts of data, you should rather use WiFi.

Types of Bluetooth Adapters

Wireless USB, also called WiFi adapter,

If you want to buy a Bluetooth adapter, you can essentially differentiate between three types of models:

  • USB bluetooth dongle
  • Audio Bluetooth adapter (AUX)

You can find out more about the two types of Bluetooth adapters here.

are similar to wireless near-end radio technology and can therefore be used instead of a Bluetooth adapter. This achieves a much higher speed. The disadvantage, however, is that WiFi is not available everywhere.

For comparison, you can use Bluetooth anywhere. Their range is completely sufficient to exchange some pictures or audio files or to play the Spotify playlist on the speaker. For faster exchange of larger amounts of data, you should rather use WiFi.

USB Bluetooth Dongle: Advantages & Disadvantages

The USB Bluetooth dongle looks like a classic USB stick and is connected to a USB interface of a PC or laptop. This allows you to pair your device with wireless accessories such as a mouse, keyboard, printer or gaming controller. You can also exchange any files wirelessly using the USB dongle.

USB Bluetooth are particularly compact and handy, especially nano models. Another benefit is that it can be charged via the device to which it is connected.


  • compact
  • allows several devices to be connected at the same time
  • easy operation and installation
  • is charged directly from the connected device


  • permanently occupies the USB port
  • sometimes drivers are needed
  • not supported by all operating systems

Audio Bluetooth Adapter (AUX): Advantages & Disadvantages

With an audio Bluetooth adapter you can play audio files from your smartphone or PC on a stereo system. Only music can be transmitted via the audio Bluetooth adapter.

There are the following types of audio Bluetooth adapters:

  • Transmitter
  • Receiver
  • 2 in 1 (transmitter + receiver)

First of all, you should decide whether you need a transmitter, receiver or a 2 in 1 Bluetooth adapter.

Music is transmitted from the Bluetooth transmitter to a receiver. So you can forward music from your stereo system to Bluetooth headphones without cables. Since many music systems do not have an integrated Bluetooth transmission function, you need a Bluetooth transmitter.

Bluetooth receivers only receive the music and pass it on to a stereo system or a loudspeaker. This assumes that you are sending audio files from a device with built-in Bluetooth.

With audio Bluetooth adapters, you should ensure a permanent power supply – either via a permanent connection to the socket or via micro USB.

For example, if you want to transfer music from your tablet or smartphone to the hi-fi system, you only need a receiver.

2 in 1 Bluetooth adapters are sender and receiver in one. You can use it to send music from your stereo system to Bluetooth headphones or play it from your smartphone via the stereo system or car radio.


  • Transmission of audio in high quality
  • wireless radio connection
  • Send and receive function in 2 in 1 models


  • only music is broadcast
  • permanent power supply sometimes problematic

Bluetooth Adapter: Purchase Criteria

In the following we would like to show you which factors you can use to compare and evaluate Bluetooth adapters. This will make it easier for you to decide whether a particular Bluetooth adapter is right for you or not.

  • Connection
  • Bluetooth standard
  • Bluetooth range
  • Power supply and battery power
  • Plug & Play


There are the following connection options, which differ as follows:

  • The 3.5 mm socket is suitable for TV, PC, iPod, MP3, MP4, smartphones and other devices.
  • A USB connection is the most common interface on desktop PCs and laptops. You can use the port to connect many devices to your PC, such as a keyboard or mouse.
  • The 2.5 mm socket is mostly used in older cell phone models. Nowadays it is used less and less.

Bluetooth standard

It is also important that you pay attention to the Bluetooth standards. The speed of the data transmission and the range depend on this.

There are a variety of Bluetooth standards such as v1.0, v1.1, v1.2, v2.0, v2.1, v3.0, v4.0, v4.1, v4.2 and v5.0. Basically, standards 4.0 and higher are recommended because they are more up-to-date than older Bluetooth versions.

Some adapters are marked as “backwards compatible”. These can also ensure a connection with devices with less current Bluetooth standards.

The earlier Bluetooth standards (from v1.0 to v3.0) are suitable for connecting to a device with older Bluetooth standards.

More recent standards are currently the 4.0 and 5.0 Bluetooth standards:

  • The Bluetooth 4.0 standard is characterized by its economical energy consumption. This property is indicated by the addition of LE or “Low Energy”. The sticks labeled “Bluetooth Smart Ready” also support devices with older Bluetooth standards, while “Bluetooth Smart” are only suitable for devices with the same standard.
  • The fifth generation Bluetooth or Standard 5.0 achieves a range of up to 200 meters and also a higher speed. The manufacturers promise a better low-energy mode than the previous version. This standard can also be used to send URLs or short texts. However, no differences are noticeable when playing music.

Bluetooth range

The Bluetooth radio range for Bluetooth dongles is identified as the maximum range (specified in meters) or classification.

Class 1
reaches up to 100 meters (outdoors) and is considered to be the greatest range

Class 2
reaches up to 50 meters and is often found in good USB-Bluetooth adapters

Class 3
only achieves up to 10 meters and is particularly energy-saving

It is important to decide what you most want to use the Bluetooth dongle for. In principle, we can recommend using Bluetooth adapters from class 2. The short range can also be sufficient if, for example, you need Bluetooth to connect to the radio in the car.

For a maximum range you should avoid possible obstacles between the transmitter and the receiver such as walls, metal, backpack material as well as interference signals such as WiFi, microwave and cordless telephones.

Power supply and battery power

While Bluetooth USB are charged directly from the device, you have to take care of an extra power supply with an audio adapter.

If you want to buy an audio Bluetooth adapter with a battery, you should pay attention to the battery life of at least 7 hours.

You can usually charge most audio Bluetooth adapters with a USB-to-Micro USB connection cable. Stationary models, which usually do not have a battery, can be operated with a power supply unit.

Plug & Play

With this feature, no configuration of the driver is required. You simply plug in the USB adapter and the Bluetooth connection is established automatically. Therefore, the models with this function are highly recommended.

Facts about Bluetooth Adapter

The connection of the Bluetooth adapter always drops: what to do?

If the connection is unstable, follow the next steps:

  1. Delete Bluetooth pairings that are no longer used (see settings under “Bluetooth”).
  2. Check the battery status of the paired devices; charging is necessary in the low state.
  3. You can use apps like Bluetooth Auto Connect to automatically connect and prioritize devices.

The Bluetooth adapter does not recognize any devices: what to do?

If Bluetooth doesn’t recognize any devices, your PC is very likely invisible to other devices. To make your PC visible, follow the next steps:

  1. Click with the right mouse button on the Bluetooth symbol in the action center and on “Switch to Settings”
    in the bluetooth settings.
  2. Click on “More Bluetooth Options” and turn on all three switches in the next dialog box.

How to increase the Bluetooth range?

For a quick fix, you should:

  1. Try to connect in a different location or location.
  2. Align devices within sight of each other.

If you can only achieve a short range with your device, it is best to buy a higher class Bluetooth adapter. These are cheaper than Bluetooth repeaters and offer the simplest long-term solution.

You can find the information about the class in the technical details of your device. Sometimes this information is on the back of the Bluetooth USB dongle. You can also simply google your model.

The range can also be improved by using a Bluetooth repeater. However, this option is only suitable for Bluetooth devices from class 2. Repeaters are also not cheap and cannot promise a guaranteed result.

4.8/5 - (6 votes)

Last product update on 2022-06-30 | Source: Amazon Affiliate