Bought three of these; one for each bath fan. All work very well and have held up for 6+ months daily use. No buzzing or buttons falling off. Competitor units have numerous reported issues and reliability problems so I'm very happy. Blue LED lights are rather bright which is OK in a bathroom (sort of a night light). If this for a bedroom, consider the version where lights can be disabled. There are also different time selections available if this one doesn't suit you.
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