2.4G remote controller is called 2.4G remote controller because it uses 2.4G frequency, which contains 400 frequency points, but the general 72MHZ has only 50 frequency points. Because the bandwidth of 2.4G frequency band is also wider than 72MHZ, it has the advantage of low interference. At the same time, because there are more frequency points, the influence of mutual interference is also low, and the remote control distance is far away. In the manufacturing process, it is also because the antenna is short and easy to manufacture and carry. It can be said that it is a very mature and widely used technology, and now it is used in many aspects, such as airplane models. The disadvantage is that there is rudder jumping, but compared with the remote control technology of 72MHZ, this is also an advantage. However, the 2.4G remote control has a higher cost than other remote controls.