They listened hard to how an ear bus could help them learn and enjoy life before making their own small investment in the public health mission.

The FrontRow Ear Bus Pass and complimentary colouring-in sheet is the latest fundraiser from the Hear Our Heart Ear Bus Project committee.

Dubbo South Public School students were the first to buy the special tokens this week.

The fundraiser was launched by Allyson Young from FrontRow, its sponsor.

With the support of FrontRow, a developer of classroom sound amplification systems, and The Good Guys, the Hear Our Heart committee raised $47,000 in its first 18 months.

Its target is $360,000 to put the clinic on the road with an audiologist to see students plagued by the common but serious ear problem, otitis media.

The committee came up with the bus pass concept together, committee member Rowena Galway said.

"We wanted to do something meaningful for the children so they understood the purpose of the ear bus," she said.

Dubbo South had welcomed the chance to be part of the launch after they recently finished their healthy ears lessons with the NSW Department of Education hearing support teachers.

Children at the 29 public and private schools the ear bus would visit can buy the bus passes for $2 and enter the Hear Our Heart colouring competition.

Winners and prizes will be announced in the last week of August, which is Hearing Awareness Week.

The winner's entries will be displayed at the committee's art auction in the same week.