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Several parameters you must see when buying TWS Bluetooth headsets
Time:2021-08-07Click volume:

Music fans who like to listen to music do not know how to choose a TWS Bluetooth headset suitable for their use. In fact, choosing a Bluetooth headset is the same as choosing other electronic products, mainly based on the parameters of the headset. However, the parameters of the headset are often ignored by us, and we tend to pay more attention to the color and style of the headset. So how can I choose an easy-to-use headset?


Important parameters are: HD transmission protocol, Bluetooth version and noise reduction function/transparency mode.


Auxiliary parameters include sound unit, stethoscope effect, waterproof level, battery life and charging mode.


The three important parameters are first introduced below.


HD transmission protocol


A higher transmission protocol theoretically means less loss in the process of data transmission, and more music details can be retained, so the sound quality will be better. But in reality, it will not strictly comply with it for various other reasons. Don't blindly pursue a high transmission protocol.


In addition, for Apple users, if you choose a headset that is not your own, you need to pay attention to choosing a headset that supports AAC mode. Because some earphones support APTX and SBC modes, but Apple does not support APTX, it is directly reduced to SBC, and there are still many differences.


Several parameters you must see when buying TWS Bluetooth headsets


Bluetooth version


Many TWS Bluetooth headsets now use Bluetooth 5.0, and now versions 5.1 and 5.2 are also about to appear, both of which are downward compatible. Compared with its previous generation Bluetooth 4.2, Bluetooth 5.0 has the overall advantage of better performance in all aspects, such as lower power consumption, higher connection stability, longer transmission distance, and so on.


When choosing a headset, try to choose a headset with a higher Bluetooth version, which will have a more stable experience.


Noise reduction function/transparency mode


The noise reduction function is very important to the function of the earphone. One is to reduce the influence of external noise. The earphone can hear clearly without increasing the volume, thereby reducing the damage to the eardrum. The second is to filter noise to improve sound quality and call quality. Noise reduction is divided into active noise reduction and passive noise reduction (physical noise reduction). Passive noise reduction mainly uses the fitting of the earplug cap and the ear to prevent noise from being transmitted to the ear. Here we mainly explain the active noise reduction.


The noise reduction technologies such as ANC, ENC, CVC, DSP, etc., are the main noise reduction technologies that businesses will promote when they promote the noise reduction function of headphones. Here is a brief explanation.


The ANC noise reduction technology is the active noise reduction that we see in the earphones. It is mainly aimed at low-frequency noise, such as air-conditioning fans, subways, and cars. Earphones that support active noise reduction can allow us to obtain a unique quiet space in the continuous roar of low-frequency noise, and to play songs without too much volume, it can better protect the eardrum. But it is generally more expensive, and only mid-to-high-end headphones will be configured. There is also DSP noise reduction technology, and ANC noise reduction are both active noise reduction, mainly for high and low frequency noise. The other two CVC noise reduction technologies and ENC noise reduction technologies are both applied to call noise reduction. The direct experience is to remove or reduce various interference noises in the environment, and the human voice will be clearer, so that the other party can be more clear Hearing our voices is conducive to the transmission of information.


Next, let's talk about the transparent mode, that is, the ambient sound mode, which is to enable the enhancement of the human voice while ensuring the effect of low-frequency noise reduction. When communicating with people face to face, you can switch to the ambient sound mode to communicate smoothly without taking off the headset. A well-made headset can realize that when the transparent mode is turned on, although the outside sound is put in, but it is selectively put in, the sound you hear will be softer and more comfortable.


I think this feature is quite good, especially for true wireless headphones. Sometimes we don’t have a place to put the earphones off, and it’s easy to lose them. But for earphones with this function, we don’t have to worry about this problem.


In addition to the above three important parameters, there are the following auxiliary parameters that can be considered for purchase!


Sound unit


The unit refers to the sound unit of the moving iron earphone. The more units, the more units can be equipped for each frequency band, and the better the sound quality. Commonly used sound generating units for earphones include moving coil units and moving iron units.


For the moving coil unit, the diameter of the sounding unit is linked to the sound quality. To a certain extent, the earphone of the big sounding unit has a wider frequency response, but it will also have a heavier weight. However, the size of the unit is not the main factor that determines the sound quality. For moving iron units, the more units, the better the sound performance.


Stethoscope effect


When buying a Bluetooth headset, I often hear a term-the stethoscope effect. The stethoscope effect is common in in-ear headphones. When the earplug cord or unit is impacted by external impact or air friction, the friction sound generated by the vibration is directly transmitted to the ear canal through the earplug cord, which is called the stethoscope effect.


In the past wired earphones, it is inconvenient to unwrap the twisted wire every time you use it. During exercise, the wire collides or air friction can easily cause the stethoscope effect. The emergence of TWS Bluetooth earphones has improved this problem. However, the stethoscope effect is still an inevitable problem for in-ear headphones. Here is a small suggestion. Try to replace shoes with softer soles. Perhaps this situation can be improved a lot.


waterproof level


The format is IPXX, the first X represents the dustproof ability, the second X represents the waterproof ability, the larger the number, the higher the protection performance. Generally, the waterproof level of true wireless earphones is IPX4 to IPX5. This level of waterproof and dustproof ability can cope with daily use. If you have sports needs, you can pursue IPX5. If you want to use headphones while swimming, it is safer to pursue IPX8.


Battery life and charging method


Generally, the single battery life of true wireless headsets is within 10 hours, and the total battery life of the charging compartment can generally reach 15-30 hours. According to the 4 hours of use per day, the strong battery life can be used for a week. Now more headphones use the Type-C charging port that supports both front and back dual insertion, which is much more convenient than before. There are also some headphones that support wireless charging. For patients with lazy cancer like me, you can consider it.


Other reference items


Appearance, price


Sound quality, connection stability, latency


Weight, wearing comfort, firmness


Button/touch, convenient operation


Whether it is divided into primary and secondary ears, whether it supports any single-ear call


A Bluetooth headset is not only for us to enjoy music, it can bring some convenience to our work, life, and entertainment.


Plus the last and most important purchase guide-the audition is very important!


After all, practice is the only criterion for testing truth!