A woman who has had a stammer since she was three has told how an electronic gadget helped her cure the problem.
Heidi King, 25, stopped stammering - when people cannot get their words out properly - after wearing a gadget that fits in her ear and echoes her voice.
Listening to the voice in her ear unblocks Heidi's speech problem and she says she feels like a new person.
About one in 20 kids have a stammer at some point, but 80% of them stop doing it before it gets too bad.
Heidi had tried lots of different things to cure her stammer.
The gadget, which costs more than £5,000, comes from America.
It won't necessarily stop every sufferer from stammering, but it has helped Heidi.
"I don't feel like Heidi because I am not stammering," she said.
"I am listening to a little man in my ear. I am just not struggling as much. It is just so strange to speak without stammering."