It's your moment.

SONNET Processor for Cochlear Implants

Effortless Listening

Life can be a handful sometimes. That's why SONNET is designed for hands-free control wherever you go.

Automatic Sound Management 2.0 (ASM 2.0) actively adapts to changing listening environments, so you don't have to worry about adjusting settings or changing programs. Focus on what you're listening to, not on which program you'll need to hear it.

Microphone Directionality focuses your hearing by using two microphones to sharpen the sounds in front of you for better listening, especially in noisy settings.

Wind Noise Reduction minimises continuous wind noise, making it easier to hear in outdoor settings. The levels of wind noise reduction can be adjusted for your specific needs.

Automatic Volume Control continuously monitors your environment and seamlessly adjusts volume levels to ensure every sound is heard clearly and comfortably.


Make a Splash

Relax by the pool, run through the sprinklers, or jump in the puddles. With the water-resistant SONNET, you don't have to worry about an unexpected splash keeping you from the activities you love.

For a fully submergible audio processor wearing option, check out the RONDO with WaterWear accessory.

Mix it Up

Blend in or stand out. With hundreds of different colour combinations to choose from, you can mix and match processor parts for a SONNET that suits your style. How will your SONNET look?

SONNET comes in one of these six base colours. For individual colour combinations please contact your local MED-EL representative.

SONNET Control Unit

Battery Pack Cover




Never Miss a Moment

SONNET delivers up to 60-hour battery life without a trade-off in performance. Weighing less than 11 grams, the lightweight SONNET uses two disposable 675 zinc-air batteries. The locking battery case of the SONNET is tamper-proof, making it the ideal option for young children.

And now, you can even go rechargeable with your SONNET.

60-Hour Battery Life

Performance Without Compromise

Sync With All Your Devices

With built-in wireless connectivity and flexible direct audio input options, SONNET can connect to nearly any external audio source.
The integrated telecoil lets you connect wirelessly to a wide variety of audio-streaming systems.

The included FM battery cover provides a connection to standard 3-pin FM devices. A 3.5 mm accessory cable enables direct audio input from any device with a headphone jack.

Ready for upgrades, SONNET features high-fidelity 2.4 GHz wireless connectivity to ensure you’ll be able to get connected to the latest audio-streaming technology in the future.

From tablets to turntables, SONNET keeps you connected.

More about Wireless Connectivity

Stay Connected

Ideal for children and adults, the DL-Coil for SONNET lets you check proper implant connection at a glance. Adjustable magnet strengths make it easy to fine-tune for optimal wearing comfort. And with reinforced cables and a locking connection, the SONNET with DL-Coil keeps you connected to your hearing.


Powered by Triformance

Experience the fullest, richest range of sounds, perceive speech and music more naturally, and protect your hearing—all with Triformance.

To give you the most natural hearing possible, MED-EL cochlear implants are powered by Triformance, the combination of three key technologies: Complete Cochlear Coverage, FineHearing, and Structure Preservation.

Hear the Triformance Advantage


Can you hear the bass? Only our unique FineHearing sound coding technology gives you a richer perception of sound by including deep bass tones. With our FineHearing technology, SONNET provides a fuller, more natural perception of speech and music, especially with low-pitched bass sounds.

Find out more

Structure Preservation

Our incredibly soft, flexible electrodes are designed to protect the delicate nerve cells of your inner ear. Structure Preservation provides a solid foundation for a more clear and accurate perception of sound. Protecting your cochlea enables your implant to deliver the best benefit, both now and in the future.

Find out more

Complete Cochlear Coverage

To hear the most natural range of sounds, you'll need an implant electrode that's long enough to cover the whole cochlea. We offer the longest, most flexible electrodes available, making our electrodes the only choice for Complete Cochlear Coverage.

Find out more

20 Years of Implant Compatibility
Fully compatible with all MED-EL cochlear implants from the previous 20 years, SONNET enables all of our current recipients to benefit from the latest in MED-EL technology.

Remote Control

SONNET features Automatic Sound Management 2.0 to minimise the need to adjust settings in most environments. For additional control, SONNET features the convenient FineTuner remote.

The FineTuner Remote Control allows you to easily adjust settings and select programs with the press of a button. The compact FineTuner fits easily into your pocket and the large buttons make it easy to use. A single FineTuner can be used to control both processors for bilateral recipients, making it especially convenient.

Technical Data

Compatible Hardware/Software
  • FineTuner Remote Control Unit
Sound Coding Strategies

SYNCHRONY Cochlear Implant System supports the latest generation of FineHearing Technology as well as other advanced coding strategies.

Future Compatibility

Designed for compatibility with upcoming sound coding strategies.

  • Integrated telecoil for wireless access to Assistive Listening Devices (ALDs)
  • Direct-plug in (standardized Euro-Audio 3-pin connection)
  • Wireless ready for future 2.4GHz applications*
Product Features
  • Splash-proof design with IP54 rating
  • Dual microphones
  • Datalogging
  • Automatic Sound Management 2.0 (ASM 2.0)
  • Microphone Directionality
  • Wind Noise Reduction
  • Automatic Volume Control with Dual-Loop AGC
  • Tamper-proof design with integrated child safety features
  • Link-check coil function with LED indicator
  • 6 base and coil colours
  • 15 changeable colour options for microphone and battery pack cover
  • 4 cable colour options

See Colour Configurator

Weight and Dimensions
  • 10.6 g (including batteries)
  • DL-Coil: 4.6 g, 32.8 mm x 5.8 mm
  • DL-Coil magnets available in 5 strengths
  • Durable coil cables available in 3 lengths: 6.5 cm (2.6 in), 9 cm (3.5 in), 28 cm (11.0 in)
Battery Life

Up to 60 hours of use with a set of 2 zinc-air batteries (type 675)

Coil Magnet Strength

Soft, Medium, Strong, Extra Strong, and Max Strength

* Wireless accessories for SONNET are currently in development and are not currently approved in Canada.


© 2020 MED-EL