Many people pay close attention to the sound quality of the Bluetooth headset when they buy it. After all, the headset is used to talk or listen to music. What are the factors that affect the sound quality of the Bluetooth headset? Let's popularize science for everyone so that consumers can make correct purchase decisions when they buy the headset.

I. Bluetooth version

Bluetooth version is a very important aspect that affects the sound quality of Bluetooth headset. The higher the Bluetooth version, the faster and more stable the signal transmission, and the less the consumer will encounter the phenomenon of signal disconnection and sound jamming in the process of calling and listening to songs. At present, the Bluetooth version 4.1 is widely used in the Bluetooth headset products on the market, and some middle and high-end products have adopted the Bluetooth version 4.2 and 5.0. 。

II. Bluetooth chip

The quality of headphone signal transmission is mainly determined by the chip. In addition, whether the chip has DSP digital noise reduction technology, CVC echo processing technology, and whether it supports apt-X, AAC, LDAC and other technologies are also factors that affect the sound quality of headphones. In addition, the performance of different brands of chips is still very different. At present, the performance of CSR's Bluetooth chip is better than that of loda, chuangjie and other companies. Consumers can try to choose the Bluetooth headset products using the chip when they buy.

III. headphone cavity

Whether the acoustic cavity of earphones is scientific is also an important aspect to determine the sound quality of earphones. However, due to the high cost of research and development and the difficulty of innovative discovery and invention, few manufacturers have specialized in this area at present. Therefore, consumers can not pay too much attention to this aspect of earphones when purchasing.

IV. headphone speaker

A large part of the sound quality of headphones is also determined by the loudspeaker, while the sound quality effect presented by the loudspeaker is determined by the magnet, vibration film and voice coil wire in the loudspeaker. From the perspective of the material used for the voice coil wire, the medium and low frequency of the copper wire is better, and the sound quality and life of the sound generating unit are also better. According to the type of magnet in the horn, the performance of NdFeB magnet is much better than that of ferrite. Therefore, consumers should try their best to choose earphones with the above materials.

The main factors that affect the sound quality of Bluetooth headset are the above. However, many manufacturers in the Bluetooth headset market conduct false propaganda and use fake components to pretend to be brand components, so as to tempt consumers to buy and obtain higher profits at the same time. Therefore, before consumers buy, it's best to go to a physical store and try to listen more, so as not to be cheated.