When U want to listen to the radio U have to switch it on. It works with electricity. The electricity goes into the radio, and inside it's electric then.. When it's switched on then U can listen to it because it's electrificated. Then it speaks to U and U hear voices. I hear voices, too, because I have got a radio. And I've got an electric kettle, but that's not a radio which U can hear like that when it's on. At home, I've got the radio. With electricitation. When it doesn't speak with the voices then it's perhaps because it's singing with music. Or because U haven't switched it on. U must find out yourself. I can't always explain everything, sometimes you must think for yourself too.