1.the use of wireless Bluetooth technology, is commonly said Bluetooth technology, the rapid development of earphones is inseparable from the help of Bluetooth technology, true wireless earphones, generally using the Bluetooth 4.2 standard and the new standard, for example, some big factories have used the latest Bluetooth 5.2 standard. No matter what the standard, the purpose is to solve the connection stability, reduce power consumption, improve sound quality.

2. True wireless earphones have the characteristics of low power consumption because of the use of Bluetooth 4.0 and above standard. This will make the standby time get longer and make the user experience better.

In addition, the current true wireless earphones basically have noise reduction features. Noise reduction is divided into active noise reduction and passive noise reduction, or both. The principle of passive noise reduction is to use the shape design of the earphones to isolate the external noise from the ear; active noise reduction is to use chip technology to analyze the external noise; then the reverse "noise" is generated with the simulated "noise" and the energy becomes "zero", so the influence of external noise can be eliminated. Noise reduction is now one of the features of true wireless earphones. Because the noise-canceling earphones require chips and hardware circuits to generate signals, they will consume additional battery power, thus making the earphones have a shorter standby time.