How should I choose a Bluetooth headset?

With the maturity of Bluetooth chips, more and more people are choosing to replace wired headphones with true wireless Bluetooth headphones. There are many advantages of Bluetooth headphones, so I won't go into detail here. This time, let's discuss which Bluetooth headset to choose in the same price range? I will divide the focus of the choice into 3:

1, the connection should be fast and the process should be stable. No one wants to hear the ear-splitting sound of “bared” while listening to songs or watching videos.

2, the sound quality should be as good as possible, here I say as good as possible because the cost of some headphones is there, can not compare it with the sound quality of wired headphones.

3, low latency. Especially if you buy it to play competitive games, you must communicate with your teammates in a timely manner, otherwise the experience will be terrible.

Connection stability

Many people use bluetooth headset will “cut off the flow”, which is the performance of the headset connection is not stable enough. Mostly due to the use of the headset in the process, encountered signal interference or object blocking caused. For example, some metal objects, resulting in the connection of the headset will be more or less affected.

How to solve it? Just choose a Bluetooth headset with stronger anti-interference performance.

We all know that the mainstream bluetooth headset is divided into bluetooth 4.2 and 5.0 two versions, 5.0 compared to 4.2 the biggest advantage is the anti-interference ability. Bluetooth 5.0 not only anti-interference enhanced, power consumption is also greatly reduced.

Although it is said that Bluetooth 5.0 headset is best used with a cell phone that supports Bluetooth 5.0, I still recommend that you try to buy Bluetooth 5.0 headset no matter what cell phone you have. Because the Bluetooth version is backward compatible, it will work no matter what version of Bluetooth your phone has.

Sound quality and listening experience

To keep the pros brief, let's focus on one of the factors that affects sound quality: the loss of music during transmission.

Audio files are transmitted via Bluetooth, and one of the media is the audio chip.

About how the audio file is transmitted through the chip, you can give a simple example - Yugong Yishan, you need to move the mountain from point A to point B, directly move the whole mountain is certainly not realistic, not so big strength. Only through a little transportation of soil, in order to achieve the ultimate goal. But compared to moving a mountain with a fool's errand, audio encoding is very fast.

Different encoding methods will not only affect the sound quality of the headphones, and even has a relationship with the delay.

The current mainstream encoding methods are SBC (the most common), AAC, aptX, LDAC, and HWA.

If you have the ultimate pursuit of sound quality, LDAC and HWA encoding both of which support the transmission of lossless sound quality. Of course, the price may be super, super, super out of your budget.

The aptX encoding is a further improvement over AAC, and Qualcomm has reduced latency for gaming with the subsequent upgraded aptX-ll encoding.

Factors Determining Latency

There are four factors that play a decisive role in the latency of Bluetooth headsets: the encoding method of Bluetooth audio, the encoding performance of the cell phone chip, the interference factor of the Bluetooth transmission process, and the decoding chip of the headset.

Among them, the coding method of aptX has an advantage in latency, and it is also the headset with Qualcomm chip, so you can learn about it in advance when choosing a headset.

There is also a cold knowledge, due to the Bluetooth transmission is 2.4Ghz band, the cell phone side of the 2.4Ghz WiFi on the Bluetooth transmission will also have a certain degree of interference, it is recommended that you can switch to the mobile network or 5G band WiFi when playing games.