we purchase this alarm clock for we son 's birthday present . it work well when we first get it and work for the first few hour of he have it . the sound then stop and eventually start work again but now on day 2 it have stop make sound again . I will be try to contact the company tomorrow to see if they have any helpful idea on what to do . hopefully I do not have to spend a ton of money shipping and replace a product that only work one day . if the sound issue would not have happen I would have give this product a much higher rating , but cool or not , it be a alarm clock with no sound .