I purchased this unit with the anticipation that I was getting a quality product (as I did with the numerous other Sony products in my home); with one glaring exception, I believe I would have gotten just that. Unfortunately, in spite of the features, overall design, and multiple sound options, I had to return it. The one thing a clock radio must be able to accomplish is to wake me up in the morning; power outages, though infrequent in my area, do happen, and my bosses would not take kindly to the "my alarm clock didn't go off" excuse for me being late. I cannot think of a logical reason why Sony, one of the largest electronics manufacturers in the world, has not built a battery backup into this otherwise impressive device. Shouldn't such a feature be a given? If Sony comes out with a revised version of this clock radio which includes a battery backup, I'll certainly purchase it; until then...sorry, I just can't take the chance.