When the Bluetooth driver is not loaded, the Bluetooth mouse is useless, but 2.4 is not. You can't use Bluetooth mouse under DOS, and you can't use Bluetooth mouse under LINUX. It's a little more expensive than 2.4, which is more energy-saving.
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Mouse transmission mode, that is, the connection mode between mouse and computer, need not be introduced. In the early days, there were about four wireless transmission modes of wireless mouse: infrared, 27MHz, 2.4GHz and Bluetooth. Now infrared and 27MHz have been basically eliminated. At present, we often see technical indicators such as "2.4GHz" or "Bluetooth" on product packaging. What is the difference between "2.4GHz" and Bluetooth? What is the relationship between Bluetooth and 2.4GHz?
Now the most popular is the keyboard and mouse with 2.4GHz transmission mode. The product works in the frequency band of 2.4-2.485GHz, because this frequency band does not need authorization, so the product is very easy to popularize. In addition, the transmission rate of 2.4GHz reaches 2Mbps, so it does not need to work continuously, which has great advantages in power consumption. And the automatic frequency modulation technology can also be used for two-way transmission, which ensures the continuity of the signal well.
Let's talk about Bluetooth technology. To be precise, Bluetooth is a wireless standard, just like ZeeBig and Wi-Fi. Because the Bluetooth standard also works in the 2.4GHz band, many users are often confused. At present, according to the transmission distance, Bluetooth can be divided into three standards: Class 1, Class2 and Class3. The transmission distance of Class 1 standard can reach about 100 meters, while the shortest transmission distance of Class3 is only about 1 meter. Our commonly used keyboard and mouse products generally adopt Class2 standard, and the transmission distance is about 10 meter.
The highest transmission rate of Bluetooth standard is 1Mbps, which is only half of the 2.4GHz non-networking scheme. However, because all Bluetooth devices have a unified standard, any Bluetooth device can be connected with each other in a certain range, which has a wider range of use and obvious advantages.
At present, the products using 2.4GHz non-networking scheme are the most, and the price is relatively low, while the products using Bluetooth technology are relatively few, and a certain patent fee needs to be paid, so the price of Bluetooth products is relatively high. If users have no special requirements for products, it is still recommended to use lower-priced 2.4GHz products. For high-end users who pursue fashion avantgarde, a set of "sky-high" Bluetooth mouse and keyboard on the desktop is still dazzling.