It appears to be well designed and looks and feels good. It uses 4 AA batteries. Quieter at low speed, slightly louder at medium speed and of course louder at high speed. Battery life seems pretty decent. I've used it for hours on end for about 4 days in a row and it still seems pretty reliable with no battery changes. It's well thought out because it's compact, and the pivoting fan position makes it pretty versatile to use. The battery compartment is easily accessible for removing/inserting the battery. My only concern is the amount of air it moves across all three speeds. . I wish it had better ability to let more air through. The plastic blades are quite small, but I think they did it in a way that kept the size small for a compact weight. If it moved more air I would rate it 4 or even 5 stars. Jim
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