Need to work offline but need ambience?

Its just what I needed, as I get distracted with surfing when I should be working.
I use monitor headphones so I notice the repetition in the samples. Particularly the Airplane sound: there is speech that repeats a lot.
I would say that the audio quality could be improved on several of the samples. The Dock one is overly tinny and bright. The Brown Noise could benefit from being more full on the low end.
Thank you for Chill!

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