原文
http://www.nytimes.com/2006/06/12/t...r=1&oref=slogin
蚊子手機鈴測試用mp3
http://graphics.nytimes.com/package...10_RINGTONE.mp3

相關測試網頁
http://www.ultrasonic-ringtones.com/

我已過30
蚊子手機鈴測試用mp3還可以聽得見,最後那個測試網頁只能聽出D#