The top is that it does not need to be plugged into a power outlet !!! It works with 3 batteries which are increasingly supplied with the phone ... it's so rare that we must clarify.
For a reasonable price, we have a phone with a clear and powerful sound over the screen is big enough and we can see what is written. We have a phonebook contacts 25, was a newspaper that can see missed calls and can recall, clock and date. The more this phone is that the screen does not stay light all the time, it turns itself off and so we made a battery using economy.
I do not regret to have it installed in my living room. I previously had wireless phones, unreliable and is discharged faster than light. There is no denying the difference is here!
Considering the price I highly recommend it.