There's an ultrasound mosquito repellent. I don't understand how to chase you with a sound. What's the principle?
1460 2018-06-10 Gentleman
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A. 1
It's a mosquito bite by a female, but strangely, she hates the sound of male wingslolThe ultrasound mosquito repellent is the same frequency as the male wing sound
Gentleman 7 years ago 0
OK
A. 2
That's the principle. Thank you for the explanation.
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