CSR Harmony 4.0: Understanding Compatible and Non-Compatible USB Bluetooth Dongles

When it comes to using USB Bluetooth dongles with your devices, there can be a lot of confusion about compatibility issues. In this article, we'll explore the differences between compatible and non-compatible USB Bluetooth dongles, specifically focusing on their use with the Sony WH-1000XM3 and WH-1000XM4 headphones.

Initially, I encountered difficulties when trying to disable the onboard Bluetooth radio on my MacBook, which prevented me from installing most USB BT dongles. After disconnecting all connected BT devices, I was able to disable the Bluetooth radio and install the dongle successfully.

I tested several USB Bluetooth dongles with a desktop PC and MacBook Pro 16 (2019), and while I didn't have time to test everything, I didn't notice any significant differences in sound quality between them. However, there were two main problems that I encountered: some dongles had an audio dropping or cutting problem (audio pops randomly), while all A2DP dongles had a very limited range (few meters or less with obstacles).

One of the key factors to consider when choosing a USB Bluetooth dongle is the type of audio codec used. SBC, AAC, LDAC, aptX, and aptX HD are all different codecs that claim to offer better sound quality. However, after testing several dongles, I didn't notice any significant differences between them in terms of sound quality or latency.

Another issue with A2DP dongles is their limited range. While some dongles may claim to have a greater range than others, I found that most were only able to connect within a few meters or less with obstacles. This can be frustrating if you need to use your headphones from a distance.

It's also worth noting that there are different types of Bluetooth adapters available, including audio transmitter type adapters that do not support multimedia controls (play/pause, volume etc.). These adapters may not be suitable for all users.

In conclusion, using USB Bluetooth dongles with your devices can be complex and confusing. While some dongles may offer better sound quality or range than others, there are many factors to consider when choosing the right one for your needs. By understanding the differences between compatible and non-compatible USB Bluetooth dongles, you can make an informed decision about which dongle is best for you.

Csr harmony 4.0