Mouse frequency is the rate of return of USB, which is divided into 125hz, 250hz and 500hz for wireless and 1000hz for wired. The higher the rate of return, the faster the response, but the higher the power consumption. Generally, the wireless game mouse will reach 500hz at most, and its performance will be better. In order to save energy, some manufacturers, such as Fuller dual-mode mouse, will set energy-saving mode. If you switch to energy saving, the rate of return will automatically drop to 125hz, and the service time will be prolonged.
Blue shadow is also a kind of optics, but the reflection principle is different, the ability to cross the border is stronger, and the performance is not weak. It is a patent of Microsoft, which is different from the blue LED mouse. Please note that some manufacturers steal the concept.