Bests & Worsts Reviews from Amazon

We purchased two of these sounds machines. The first one started to cycle through all the sounds within a week of purchasing. It first started just switching from white noise to the ocean sound. Then, within a few days, it started cycling through all the sounds. It would cycle from sound to sound every 15 seconds or so. We returned the first machine through amazon. The second machine worked fine for about a month. Now, it has started switching to just one other sound. I'm assuming it will begin cycling through all the sounds within a few days. We were using them in our kids rooms for nap and bedtime but they're are waking up because of the change in sounds. We obviously can no longer use them. We should have returned the second one with the first because now the window has passed for returning.