Comes With this Tag Explaining the Glacier Water: "At the time when the Alaskan Eklutna Glacier was formed the oxygen content of the earth's atmosphere ranged between 30-33% the cleanest and healthiest air this planet has ever contained. Rain fell to the earth, became frozen and has remained untouched for thousands of years in the Alaskan Eklutna Glacier. The Eklutna Glacier is the primary sources for our water. For this reason we can claim Crystal Glacier Water to be "Nature's Premium Drinking Water." Battery Operated Blue LED light (located on the bottom) illuminated the bottle.