3D technologies, now established in the most important medical sectors, are spreading into new fields of manufacture of medical devices, bringing the "tailor-made" and the patient's needs to the first place. Among these, Audiology sector has seen a significant evolution of applications thanks to 3D printing technology, as it optimizes the simultaneous production of dozens, if not hundreds of devices customized on the anatomy of the ear of each individual user.

The combination of 3D scanning technology, CAD software and 3D printing accelerates the amount of hearing aids manufactured, lowering the cost and steps of the manufacturing process compared to traditional fully manual. This results into increased customer satisfaction and elimination of errors due to manual processes that require additional post-processing inspections.

The range of applications interested involves not only tailor-made earphones combined with the professional sector of use (hearing protection devices or competitive sports devices) but begins to involve customized systems for acoustic protection that meet the needs of the market in continuous and rapid expansion.