No ultrasound or just the sound of a mosquito will repel it. Technical means to repel mosquitoes do not work, only chemicals.
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11 years ago
Oleg
To repel mosquitoes uses ultrasound, the usual speakers in phones does not reproduce it, you need an ultrasound generator and its transmitter.
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9 years ago
Aleksandr
Neraskazuya ultrasound can produce any speaker, not a generator of ultrasound, this does not even exist, what are you thinking when you take a file with a Trojan (Virus) in the memory card, if someone is not smart and insert it into a smart phone and turn it on, you will hear what ultrasound will blast your smart phone, the sound is barely audible, and your ears are burning like teapots, and your eardrums are so bad that you still want to tell me about ultrasound, don't tell me what you don't know. And I'm still speaking normally without swearing.