There are around 45 thousand deaf children in the UK.
Traditionally, specially trained dogs to offer help have only been available to adults.
But research has found hearing dogs can also have a big impact on the lives of deaf children.
One of those who is already benefitting is 11 year old James Cheung from Derbyshire.
His story is now at the centre of a national campaign to help train more dogs.
The National Deaf Children's Society says that more than three quarters of young people cannot communicate with someone with hearing loss.
James Cheung is helping to promote a new campaign marking Hearing Dogs for Deaf People's 30th anniversary.