Context
Understand how schools and organisations actually use equipment, including the practical pressures that specifications often miss.
About Classroom Audio Technology
Technology has moved from body-worn radio aids to intelligent digital microphone networks. Eoin Roche has worked through that change while keeping the same focus: practical access to speech and dependable service for the people who rely on it.
Eoin Roche · Founder and Managing DirectorThe story
Eoin entered audiology in 1981 and soon began installing classroom listening systems in specialist schools. The earliest equipment was large and desk-mounted. The introduction of wireless radio aids helped more students with hearing loss attend mainstream schools, but the technology remained bulky and often difficult for children to manage.
Over the following decades, body-worn receivers became smaller hearing-aid receivers, analogue FM became adaptive digital transmission, and Phonak’s Roger platform created more flexible ways to connect teachers, students, classmates and classroom media.
After holding senior roles across Ireland’s hearing and educational technology sector, Eoin founded Cloisim in 2020. The business became known for its responsive school service before closing in December 2024 when the prevailing procurement model made that service commercially unsustainable.
Continued conversations with schools, parents and professionals showed that the need had not disappeared. Classroom Audio Technology Ltd was created to return with a leaner model, a wider remit and the same commitment to support after supply.
What experience changes
Long experience is useful when it improves today’s decision—not when it becomes an excuse to keep doing things the old way.
Understand how schools and organisations actually use equipment, including the practical pressures that specifications often miss.
Recognise the many generations of hearing devices, receivers and Roger equipment already present in real environments.
Treat installation as the start of everyday use, not the end of the supplier’s responsibility.
Why hearing matters
When the teacher’s voice is clear, students can put more of their attention into understanding, participating and remembering—not filling in the words that noise, distance or room acoustics took away.

A clear next step
Your first conversation is with Eoin—not a call centre or a form designed to qualify a sales lead.