Description
Pure sine wave at 5000Hz. The Sine wave has no overtones so it is sometime called pure as it is only the fundamental frequency. One hour 320kbps mp3 format
$3.00
Pure sine wave at 5000Hz for ten hours. The Sine wave has no overtones so it is sometime called pure as it is only the fundamental frequency.
Pure sine wave at 5000Hz. The Sine wave has no overtones so it is sometime called pure as it is only the fundamental frequency. One hour 320kbps mp3 format
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