Here is a cool line of refrigerators that show you what’s inside with a knock. The LG InstaView Door-in-Door Refrigerator is available in multiple models. It illuminates the contents inside as you knock on it to show what’s available. Its ColdSaver panel reduces cold air loss.
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LG InstaView - Midnight Snack
LG InstaView - Knock, Knock
You can find out more about different LG InstaView models here.
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