Man wearing Pure  312 AX hearing aids

Pure 312 AX

The small RIC for outstanding speech clarity

Equipped with all the benefits of our Augmented Xperience platform for outstanding speech clarity, Pure 312 AX attracts wearers with its fresh, small form.

Revolutionary Signia AX platform

Built on our leading-edge Augmented Xperience platform, Pure 312 AX uses our proprietary Augmented Focus™ technology to split speech from surrounding sounds, process them separately, and recombine them to deliver outstanding speech clarity in an immersive environment.

Learn more about Signia AX

Hearing aid wearers who have already experienced this revolutionary technology confirm its benefits: a full 100% of participants in a recent study reported excellent speech understanding in their home environment.3

Key features:

Augmented Xperience
Outstanding Speech Clarity
Icon for the Signia hearing aid feature "eWindscreen"
312 Battery
Android & iOS connectivity
AX Soundscape Processing
AI Assistant
Signia platform icon - EchoShield
Auto EchoShield
Signia platform icon - Own Voice Processing
Own Voice Processing 2.0
Signia platform icon - Telephone / HandsFree mode
HandsFree for iOS

Android & iPhone connectivity

The hearing aids' state-of-the-art Bluetooth connectivity supports Mfi (iOS) and ASHA (Android) direct streaming so wearers can stay connected with ease.

All your client's needs, all together

From our all-in-one Signia app to our Connexx fitting software, Signia supports you and your clients at every step.

Signia app

The Signia app for your clients’ iOS and Android smartphones – it only shows the user functions applicable to their devices. The app offers not just remote control but also two revolutionary solutions that make it easier for you to fit customers and for them to stay in touch with you when they are away from your premises.
Signia app

Signia Assistant

Inspired by the way the human brain’s neural network solves challenges, the Signia Assistant offers immediate support whenever wearers need to adjust their settings. When a change is made, the Assistant collects information regarding the wearer and the acoustic situation. You can see all these interactions between the wearer and the Assistant in the Connexx fitting software.

The live deep neural network AI that drives the Signia Assistant marks a revolution in hearing care. It is a living system that continuously learns about individual needs in specific situations, moving from a one-size-fits-all approach to data-driven knowledge for precisely tuned hearing for every individual. As a result, 93% of users regard the Signia Assistant as a meaningful innovation that raises their satisfaction with their hearing aids in difficult listening situations. 

It can also drive sales because an overwhelming 87% of consumers would choose hearing aids with such an AI assistant when buying new devices.4

Signia Assistant


Signia Telecare enables you to support your clients remotely, so they get your help in real-life situations when they need it. You can hold virtual appointments via phone or video call and adjust the hearing aid settings remotely in the Connexx fitting software.

Connexx with
Augmented Xperience

Our Connexx fitting software puts you in the driver’s seat with real-world insights to optimally support each individual patient.

EarWear 3.0

Our new EarWear 3.0 ensures that the audiological high performance of our hearing aids is delivered seamlessly when they are fitted to your clients' ears.
EarWear 3.0

Pure 312 AX is available in all performance levels.


Your clients can choose from an enhanced range of colors including the exciting new options graphite and fine gold, as well as beige, deep brown, black, silver, pearl white, rose gold, sandy brown, and dark champagne.


CROS Pure 312 AX is the rechargeable device for hearing aid wearers with single-sided hearing loss.

More about CROS AX devices

How to handle Pure 312 AX

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How to exchange the battery for Pure 312 AX
How to find the serial number for Pure 312 AX
How to use CallControl with Pure Charge&Go AX, Pure Charge&Go T AX, and Pure 312 AX



Pure 312 AX is  suitable for all levels of hearing loss (mild, moderate, severe or profound).
Yes. With AX devices you can use direct audio streaming from iOS (Apple) devices with the “made-for-iPhone (MFi)" hearing aid standard as well as certain Android devices using the ASHA standard. Audio streaming from other mobile devices (Android smartphones without ASHA, older Apple devices, PCs, laptops and other Bluetooth mobile devices) is possible via our StreamLine Mic accessory.
Yes. With our StreamLine TV accessory, you can stream from your TV directly to all AX hearing aids.
There is a rocker switch push button on the device for onboard control. Additionally, it can also be controlled remotely via the Signia app, which is freely downloadable onto your smartphone, or via our small and easy-to-use miniPocket remote control.
It is compatible with Pure 312 AX, Pure C&G AX, Pure C&G T AX and Insio C&G AX hearing aids.

Yes. CROS Pure 312 AX is compatible with the AX devices mentioned above which support:

  • direct streaming from iOS (Apple) devices using “made-for-iPhone (MFi)” capability as well as certain Android smart phones via the ASHA protocol.
  • audio streaming from other mobile devices (Android smartphones without ASHA, older Apple devices, PCs, laptops and other Bluetooth mobile devices) is possible via our StreamLine Mic accessory.
Yes.  CROS Pure 312 AX is compatible with the AX devices mentioned above which support audio streaming from your TV via our StreamLine TV accessory.
Yes. We offer a direct and very convenient remote control via our Signia app, which is freely downloadable to your smartphone.

Adjustments can be made in three ways:

  1. The rocker switch on the CROS device can be used to make program and volume changes. 
  2. The Signia app, which is freely downloadable to your smartphone, can be used to make program and volume changes as well as adjustments to sound balance and directional* settings. 
  3. The miniPocket remote control is an optional accessory that can be used to make program and volume changes. 

* When using the Directional Hearing feature in the Signia App, CROS is deactivated. It is automatically reactivated when “Auto” is selected on the Directional Hearing screen.

1 All ASHA-compatible Android phones

2 Based on 17 hours wearing per day including 5 hours of streaming

3Jensen, Pischel, Taylor, Schulte: Performance of Signia AX in At-Home Listening Situations (Signia White Paper, 2021)

4Hoydal, Fisher, Wolf, Branda, Aubreville: Empowering the wearer: AI-based Signia Assistant allows individualized hearing care (Hearing Review 2020;27(7):22-26)

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