Not actually music.

It is understood that there are many varieties of this kind of software, all of which claim to use the principle of high-frequency ultrasonic waves to repel mosquitoes. The reporter searched online and found that "mosquito repellent software" mainly includes "Super Mosquito Repellent", "Green Mosquito Repellent", "Electronic Mosquito Repellent", "Electronic Mosquito Repellent KM300", etc.

These software can be roughly divided into two categories. One is the "sound" weapon in mosquito repellent software, represented by "electronic mosquito coils", which are said to use high-frequency sound waves to repel mosquitoes. According to reports, its control interface is very simple, with only three options: frequency response time, two wave spectrum selections, and automatic operation. The frequency range of the sound waves that can be emitted is between 50 Hz and 30,000 Hz.

The "principles" advertised by the mosquito repellent software are as follows:

1. The theory of female mosquitoes avoiding male mosquitoes: Male mosquitoes only rely on nutrients such as nectar and plant juices. Blood-sucking; female mosquitoes must suck the blood of humans and animals in order to gestate and lay eggs; male mosquitoes will continue to emit courtship sounds, but already-pregnant female mosquitoes will try their best to avoid male mosquitoes because they do not want to get pregnant again. The mosquito repellent uses this principle to simulate the frequency of the sound produced by the vibrating wings of male mosquitoes when they fly to scare away female mosquitoes and achieve a mosquito repellent effect.

2. Imitate the sound of bats, the natural enemies of mosquitoes. Bats use ultrasound to locate prey. In order to resist predation by bats, some insects (such as some noctuids) have evolved organs that can recognize ultrasonic waves and can escape after hearing the sound of bats.