A little boy who had life-changing therapy to help him listen and speak has encouraged others to support the charity that helped him.

David Tiselita, eight, from Hayes, is profoundly deaf and uses cochlear implants.

He is now helping charity Auditory Verbal UK launch its annual Loud Shirt Day so more deaf children can access therapy.

The boy showed how far he has come post-implant surgery by compering at the London Early Years Conference held at City Hall.

Mum Irina said her son had a "great time" in what was a "fantastic opportunity".

David even introduced the deputy mayor for London Joanna McCarthy on stage to a packed room.

Anita Grover, chief executive at Auditory Verbal UK, said David was a "shining example of what deaf children can achieve".

David’s parents visited Auditory Verbal in Oxfordshire after their son’s surgery, where therapists use play-based techniques to equip parents with skills to teach their child to listen and talk.

Anita added: "Many people are surprised to learn that a profoundly deaf child can learn to speak as well as a child with typical hearing.

"They are surprised that they could be achieving on a par; that the language gap can be closed.

"Four out of five of the deaf children that we work with at AVUK achieve spoken language on a par with hearing children of their age. Most achieve this by the time they start school. Most are in mainstream schools."

Auditory Verbal UK is asking schools, businesses and families to wear their brightest clothes for its Loud Shirt Day on June 7 to raise awareness.