Impressed by the idea and design we bought two products Quantys. In the first we have observed after one year that the battery had expired and had to dispose of these. The second alarm clock, we were now warned later got the same problem. We then replaced the batteries, not realizing that Quantys special use batteries. An indication there is not on the product! When customer service we have just pointed out that the warranty had expired. Did not get the claimed clock back to today.
