Rabbit ears question about u shaped connectors on end of cable

I have rabbit ear antennas and the picture is coming in for me. I am having trouble with sound. There is a phone number that you can call to get an antenna. It came with the box and is 1-800-393-1246
I have rabbit ears will I need a fancier antenna also the ears have u shaped ends? Will I need an antenna adapter, where do I get these?
it depends on where you live and how far you are from the transmitters, but most people will need an outdoor antenna. Go to TV Fool - Home and put in your address it will tell you how far the transmitters are from you and in what direction:).