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Review title: Poor quality control
Product review: This item arrived defective (electronics did not work), and I returned it for an exchange. Amazon immediately sent out another one by overnight express delivery. Unfortunately the second unit was also defective. Since two other reviewers had similar problems, I can only conclude that the quality control for this expensive item is not very good. Even if I received a working unit, I would be afraid that the electronics wouldn't last very long. I returned the second unit and ordered a Howard Leight Impact Sport Earmuff instead.
