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5![](https://m.media-amazon.com/images/G/01/digital/music/player/web/EQ_accent.gif)
Orange Noise (Study Background)
6![](https://m.media-amazon.com/images/G/01/digital/music/player/web/EQ_accent.gif)
Brown Noise (Sleep Ambient)
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9![](https://m.media-amazon.com/images/G/01/digital/music/player/web/EQ_accent.gif)
Purple Noise For Concentration
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14![](https://m.media-amazon.com/images/G/01/digital/music/player/web/EQ_accent.gif)
Brown Noise (Body Vibrations)
15![](https://m.media-amazon.com/images/G/01/digital/music/player/web/EQ_accent.gif)
Green Noise (Brain Waves Frequencies)
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