http://www.ultrasonic-ringtones.com/
나도 테스트 해봤는데 아래와 같은 결과가 나왔다.











You are a dog


Or maybe you are a mosquito, you certainly can't be human.

The highest pitched ultrasonic mosquito ringtone that I can hear is 21.1kHz

Find out which ringtones you can hear!

BOSE + SENNHEIZER 조합이라 들렸나?
Posted by unknowny
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