Handy, but what's with the blue light?

I've used this nightly for about two weeks and it still works. Other thoughts: Pros -Small, great for travel -Fairly loud if you want that -A full charge keeps it going all night while unplugged -Recharges quickly -Inexpensive Cons -Most of the sound options are useless--the lullabies are annoying and the "birds" sound fake -There's a red light while charging (okay) but when fully charged the blue light stays on all the time. Research says blue light is the worst for sleeping so this makes no sense. -I'm a bit annoyed that the seller tried to bribe me into a 5 star review, against Amazon policy.

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