So I bought this item for my dog to put in a kennel so the wind doesn't blow it. And it helps. After that has been said. I tried it at max speed 4 speed then 3 speed fully charged. I can tell you it doesn't last 53 hours, not even 20. I put it on at 12 noon and be dead by 6am if not sooner! Flashes red when charging and stops flashing when fully charged. Does not change. Quiet and haven't decided yet whether to send it back or not. You can just charge and deal with it once a day. Charges better with my phone charger from my computer. mmm
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