Now iPhone kills mosquitoes. Whoever has mosquitoes at home, try it. In theory, such a device should emit ultrasound. As far as I know, the speaker of the phone reproduces only audible frequencies, and even then, in a poor range. So why mosquitoes should die is a mystery. A long time ago I had a Mayak-001 tape recorder with a remote control. The remote control worked on ultrasound. If I held down the button for a long time, the insects disappeared from the room, and the dog began to howl at the neighbors. Hence the conclusion, in the absence of mosquitoes, you can test this program on a dog.
Install from AppStore