Styletto AX

Styletto AX

Award-winning design for brilliant speech clarity

The new Styletto AX rechargeable hearing aid looks as amazing as its sounds.

Its award-winning SLIM-RIC design is smaller than its predecessor for an even more discreet fit.

Revolutionary Signia AX platform

Built on our leading-edge Augmented Xperience platform, Styletto 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

Styletto AX gives its wearers the speech clarity they need
with the hearing aid features they want

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.2

Key features:

Augmented Xperience
AI Assistant
Outstanding Speech Clarity
Auto EchoShield
Award-winning design
Own Voice Processing 2.0
Recharge on-the-go

Automatic Situation Detection

Android & iOS connectivity
HandsFree for iOS

Wireless charging

Wearers can recharge their Styletto AX hearing aids at home or on-the-go for up to 17 hours of use per charge. The pocket-sized charging case’s wireless technology enables them to simply place the charger on a charging pad instead of having to plug it into the mains. They can also choose a Dry&Clean charger that not only charges the hearing aids but also offers UVC cleaning and drying technology to keep the hearing aids in peak condition.

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.5

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

Styletto AX is available in the performance levels 7, 5, and 3 as well as sDemo version.


Your clients can choose from an enhanced range of colors including new exciting color combinations.


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

More about CROS AX devices

How to handle Styletto AX

How to use CallControl with Styletto AX
How to charge Styletto AX with the Styletto Charger
How to charge the Styletto Charger
How to charge Styletto AX with Styletto Dry&Clean
How to clean Styletto AX
How to insert Styletto AX in the ear
How to take Styletto AX out of the ear
How to replace an eartip on Styletto AX
How to turn Styletto AX on and off



Styletto AX is suitable for most levels of hearing loss (mild, moderate or severe).
A full charge takes approximately four hours.
Yes. Only 30 minutes charging allows you up to 5.5  hours of additional usage.
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.
Adjustments can be made in two ways:
1.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.
2.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
It is compatible with Styletto AX hearing aids.

Yes. CROS Styletto 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 Styletto 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.
CROS Styletto AX can 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.

1Red Dot Design Award 2019 for Styletto Connect, iF Design Award 2019 for Styletto

2Jensen, Pischel, Taylor, Schulte: Performance of Signia AX in At-Home Listening Situations (Signia White Paper, 2021)

3Based on 19 hours wearing per day, or 16 hours wearing incl. 5 hours streaming per day

4All ASHA-compatible Android phones

5Hoydal, Fisher, Wolf, Branda, Aubreville: Empowering the wearer: AI-based Signia Assistant allows individualized hearing care (Hearing Review 2020;27(7):22-26)

6Hakvoort, Burton: Increasing Style, Reducing Stigma: The Styletto Solution (Signia Backgrounder, 2018)

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