The difference between 7.1 channel earphones and ordinary earphones is as follows: 1. Ordinary earphones only have two left and right channels, while 7.1 channel earphones have front, left front, right front, left, right, left rear, right rear, and a total of 8 sound units integrated into the earphone with center and bass. 2. Compared with ordinary earphones, 7.1-channel earphones are more suitabl...

Noise reduction is a good protection for people who need to wear headphones for a long time. However, when buying Bluetooth headsets, you will always hear businesses advertising the CVC and ANC noise reduction functions that headsets have. Although they have heard many business descriptions, some people still don't quite understand the difference between the two and their applications. Now briefly...

2.4GHz wireless technology is a short-distance wireless transmission technology, two-way transmission, strong anti-interference, long transmission distance (short-distance wireless technology range), and low power consumption. Bluetooth is a communication interface for short-distance wireless transmission. Bluetooth uses the FHSS (Frequency Hopping Spread Spectrum) method, which generally hops 160...