I did the Hearing aid Acoustician advanced course in 2022/2023. The online learning process was manageable and easily fit into my busy schedule. I was able to complete the course in good time with the help of my lecturer Dorette who’s support was superb during the entire course. My highlight was the 2 weeks of hands-on practical training at the Ear Institute. I was able to mesh together what I had learnt during the online training and learnt so much more. Overall, a wonderful course to take up!

Rachel Gichango


Having completed the paediatric audiology course, I can say it was one of the best learning experiences I have had, which has given me the confidence, knowledge and practical skills to apply in my everyday work. It is also a course where you will be trained by great and experienced teachers.

Anna Iveren Vangerwua

Audiologist Assistant and Auditory Verbal Therapist

There were a lot of information that was new to me. So, it was interesting to go through the online course and I really enjoyed it. I would recommend this course for a lot of people, especially in Nigeria. So, I think it will actually help people with hearing loss have a better hope of the future.

Fidelis Omaraka

Occupational Health Officer

The learning journey at ETI is one of my best training experiences! It provides high quality education without interrupting your daily work and personal agenda – extremely convenient for the modern busy lifestyle. The interactive content is great! Reading materials and the option to print the eBook gives you even more flexibility. I am sure that this course would be very beneficial to anybody in the field of hearing aids fitting, no matter experienced or not!

Galina Pilyova

Head of Hearing Aid Acousticians, Bulgaria

Dr. Wayne J. Staab, editor-in-chief of Hearing Health and Technology Matters has written the following reviews about ETI:

Dr. Wayne J. Staab

Editor-in-chief, Hearing Health and Technology Matters

The Acoustician’s course is one of the most worthwhile investments I have made. It has made all the difference in how I provide care and teach my students in way of knowledge and passion. The added bonus; it is online and self-paced with teachers on the ready to help anytime.

Dr Doreen Nakku

ENT surgeon

I was very happy with the practical training held in Addis Ababa, both the face-to-face training and your video teaching. Where you asked questions and encouraged me, especially when I answered your question and you raised your thumb in acknowledging. It was good. I recommend that you continue to do this course in the same way. The course was fantastic. Actually, I really want to visit your country and continue the practical training, even though the training you held in Addis Ababa was sufficient.

Sefiw Abere Zeleke


I had done the Hearing Aid Acoustician Advanced Programme, which I found to be an excellent education programme with high flexibility of when and where to study, offering an ideal combination of interactive online learning modules and assessments and a very useful 10 days practical hands-on training in South Africa before completion of the course.

In my busy job it was ideal for me to be able to study part-time, without interrupting my working week and daily life too much. The support and guidance given by the ETI trainer team during the whole programme was outstanding and we also had lots of fun. I can only recommend this course to anybody, beginner or experienced, who wants to broaden his / her theoretical and practical knowledge in the field of hearing systems by a professional and international training programme, with final examination and respective certification.

Rainer Kerscheck

Director, Distributor Sales, Germany