Hull is among one in three places in the country that does not provided "vital" technology for its deaf children.
Unlike many local authorities, Hull City Council does not provide families with specialist equipment so children with hearing difficulties between the ages of 0-4 can hear at home - leaving many to fight a daily battle.
109 councils in England provide radio aids, which have been described as "life-changing technology," and directly transmit a voice through a wire to a child's hearing aids.
The National Deaf Children's Society said the aids are "crucial in enabling deaf children to develop their language, confidence and communication skills from a young age."
A spokesman for the charity said: "If they don't gain these skills early on, deaf children face a lifetime of playing catch-up and a greater risk of isolation as they struggle to understand what's happening around them."
Hull City Council is one of 43 of the country's 152 councils that do not provide the aids - with the charity saying it is a "postcode lottery" on whether a child can receive an aid.
The council currently has 214 deaf children in its care.
'It cancels out all the background noise'
One person who know how important it is for these radio aids provided is Tina Hoyes-Cockroft's 14-year-old son, Oliver, was born deaf.
As the family live in Hedon, they are just out of the remit of Hull City Council and within East Riding Council's, meaning they were provided with the radio aids.
Tina, 48, said: "Oliver had hearing aids from being six months old. He was born premature, was only 3lb and was in his incubator when someone dropped a lid or something and he didn't flinch or move.
"I asked the nurse if that was what they would usually do and she said they'd usually jump, especially as the premature babies are usually a bit nervy so I knew straight away.
"When he was a toddler the council brought the radio aids round because we were with East Riding so were entitled to them. I never used them personally."
Tina said that although she didn't use them at the time, Oliver "wouldn't have been able to cope" without his radio aid while manoeuvring his way through secondary school, and she would recommend other families with younger children to use them.
She said: "He didn't need them [when he was younger] because I was one to one with them all day and his speech was really good so we worked on it but they were there and we were given them.
"But when you are coming to terms with your child having hearing difficulties you don't want the extra equipment, you just want to be normal.
"The equipment seemed a bit complicated and his hearing was a bit up and down with it but at school especially he wouldn't be without it. He can give the wire to his teacher and plugs it into his hearing aid. It cancels out all of the background noise so he can just hear them.
"If I had my time all over again I would use it and I wish I used it more and I would definitely recommend it."
'Unfair they are not provided'
Tina said she doesn't see why the radio aids are not provided countrywide for children between 0-4.
She added: "Why shouldn't they be provided? If you're deaf, you're deaf it doesn't matter what council you are with you should get the same opportunities."
The National Deaf Children's Society says it is "deeply unfair that thousands of children are still missing out because of where they live" and described it as a "tragic waste of potential."
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The charity wants every child to have access to the technology and is demanding an end to the "radio age lottery" and has called on every council to ensure that every deaf child has the opportunity to use one at home.
They say research shows that radio aids improve interaction between young deaf children and their parents, with significant increases in conversations both in the car (144 per cent increase) and outdoors (88 per cent increase).
Jo Campion, deputy director at the National Deaf Children's Society, said: "These figures show that young deaf children across Hull are being thrown into a radio aid lottery, where their chances of having one at home are based on their postcode, not on their needs. It's a tragic waste of potential and it's deeply unfair.
"Radio aids play an absolutely essential role in young deaf children's lives at a stage when communication, language and interacting with their family and friends are vital. They boost a child's chances of picking up language, reduce the effect of background noise and help in situations where face-to-face conversations are difficult, like playing outside or travelling in the car.
"Every council has a duty to provide this life-changing support and Hull City Council now has a simple choice; deliver for every deaf child in its care, or stand by and let even more of them needlessly fall behind."
What Hull City Council says
A spokeswoman for Hull City Council said that although radio aids are not provided for families in its remit, there is more support on offer for deaf children and their families.
The spokeswoman said: "In Hull, qualified teachers of the deaf prefer children to be consistent wearers of hearing aids or cochlear processors before radio aids are issued.
"In Hull, deaf and hearing-impaired children are supported in early years settings, at home and in schools, by qualified teachers of the deaf, specialist teaching assistants and deaf instructors. There are also two resource bases; one primary, one secondary.
"In addition, Hull has a weekly specialist pre-school group to support children's early listening and communicating skills as well as supporting their parents. In Hull, radio aids are issued, where appropriate, at Foundation Stage 2 and Year 1.
"However, it is also important that children continue to listen through their hearing aids or processors alone too."
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Sophie Corcoran is a reporter for Hull Live and the Hull Daily Mail. Her interests include positive news, news about homelessness, court news and breaking news.
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