Really? I have seen different kind of mosquito repellant but an app using ultra sound emission to chase away mosquitoes is "wow".
Besides, most mosquito repellent are often harmful to human but this is using sound that can is completely "not pickable" by human ears.
I like that the frequency is adjustable, I would have to set to the highest frequentlcy because the mosquitoes in my city are so resilient...
Awesome and very useful hunt. Good job @anhvu.
I think the population of mosquitoes is larger than the population of people. Khakha. So spray will not be effective because mosquitoes will move elsewhere until the drug wears off. Removing them away is probably reasonable when we can deal with sound.
Hope it works well with the mosquitoes where you. Have a great weekend! :)