The new invisible-in-canal device features four listening modes and app-free controls via its charging case.


Ceretone, a consumer health technology company, showcased its new Core One Pro over-the-counter (OTC) hearing aid at the Consumer Electronics Show (CES) 2026 in Las Vegas.

Core One Pro Features

The Core One Pro is an invisible-in-canal (IIC) hearing aid that is the size of a penny and weighs 1 gram. The device is designed for all-day wear and aims to provide a discreet hearing solution for people with mild to moderate hearing loss.

Ceretone Core One Pro IIC OTC Hearing Aid
The new Ceretone Core One Pro invisible-in-canal device features four listening modes and app-free controls via its charging case. Photo: Ceretone

Key features of the device include four listening modes for different environments: Standard, Restaurant, Outdoor, and Tinnitus Masking. Adjustments to volume and listening modes are made using a screen integrated into the charging case, eliminating the need for a smartphone app. The portable charging case holds enough power for four full charges of the hearing aids, according to the company.

Focus on OTC Accessibility

As a direct-to-consumer brand, Ceretone markets its products to address barriers such as cost and the traditional prescription process associated with hearing aids.

โ€œWe believe everyone deserves access to better hearing,โ€ says Ceretone’s marketing director, in a release. โ€œThe Core One Pro embodies our vision of making hearing aids that are not only effective but also accessible, comfortable, and discreet enough that anyone can wear them with confidence.โ€

Featured image: Ceretone Core One Pro IIC OTC Hearing Aid. Photo: Ceretone