This item is an electric ice bucket so to speak. You put a prechilled bottle of wine in it and it fine tunes it to the optimum temperature. You set it to one of 10 temp settings depending on the kind of wine it is and shortly you have it perfect. It also has a hot setting for sake. No more ice buckets for your champagne and redwines at a slightly colder than roon temp setting. Asking $10.00