Three friends chat after graduating from university

Nucleus® Kanso® 2 Sound Processor

Our latest off-the-ear sound processor: advanced connectivity and proven hearing performance technology1-4 in a simple and durable all-in-one design.

Enrich every moment

With the Nucleus® Kanso® 2 Sound Processor, smart has never been so simple.

Designed for active lifestyles, the Kanso 2 Sound Processor combines off-the-ear comfort with our latest connectivity features and proven hearing performance technology1-4, giving you the freedom to hear wherever life takes you.

Building on the award-winning all-in-one design of the Kanso Sound Processor5, the Kanso 2 Sound Processor introduces direct streaming* and use of the Nucleus Smart App** from compatible smartphones. It also features a built-in rechargeable battery and improved dust and water resistance+ for added peace of mind.

The world’s smallest and lightest rechargeable off-the-ear cochlear implant sound processor6, Kanso 2 is designed to be so discreet and so comfortable you’ll barely notice you’re wearing it.

The Kanso 2 Sound Processor – wear it with confidence and enrich every moment.

Colour options to match your personal style

The Kanso 2 Sound Processor is available in five different colours, so you can choose the one that best suits you.


Kanso 2 Sound Processor_Black_Award.pngKanso 2 Sound Processor_Chocolate_Award.pngKanso 2 Sound Processor_Silver_Award.pngKanso 2 Sound Processor_Slate_Award.pngKanso 2 Sound Processor_Sandy_Award.png

Focus on what's important

"As a primary school teacher having better hearing is very important because I need to be able to hear where students' questions are coming from and answer them straight away. The Kanso [Sound Processor] allows me to do that."

- Alison V, Cochlear™ Nucleus® Kanso Sound Processor recipient

Peace of mind for parents

"She can be whatever she wants to be, and find who it is that she is going to become. Phoebe does really well at school. She has awesome teachers. She's taken off."

- Cynthia S, mother of Phoebe, Cochlear™ Nucleus® System recipient 


Please seek advice from your health professional about treatments for hearing loss. Outcomes may vary, and your health professional will advise you about the factors which could affect your outcome. Always follow the directions for use. Not all products are available in all countries. Please contact your local Cochlear representative for product information.

For a full list of Cochlear’s trademarks, please visit our Terms of Use page.

*1 Views expressed are those of the individual. Consult your health professional to determine if you are a candidate for Cochlear technology.

* The Cochlear Kanso 2 Sound Processor is compatible with Apple and Android devices. For compatibility information visit

** The Cochlear Nucleus Smart App is available on App Store and Google Play. For compatibility information visit

+ Compared to its predecessor model.

The auto processor off feature must be configured by a clinician within the Custom Sound Pro fitting software.

^ For ReSound hearing aids capable of linking directly with the Cochlear Sound Processors for direct streaming from a compatible smartphone please visit:

~ ForwardFocus is a clinician-enabled, user-controlled feature.

# The Kanso 2 Sound Processor is dust and water resistant to level IP68 of the International Standard IEC60529. With the Aqua+ accessory, the Kanso 2 Sound Processor is water resistant to level of IP68 of the International Standard IEC60529 and can be continuously submerged under water to a depth of up to 3 metres for up to 2 hours. Refer to the relevant User Guide for more information. Refer to the relevant User Guide for more information.

§ The Remote Check feature of the Nucleus Smart App is available on iPhone and iPod touch. For compatibility information visit Please note, Remote Check is not available in all markets.

The Cochlear Kanso 2 Sound Processor is compatible with iPhone, iPad and iPod touch. Apple, the Apple logo, FaceTime, Made for iPad logo, Made for iPhone logo, Made for iPod logo, iPhone, iPad Pro, iPad Air, iPad mini, iPad and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries.

Android and Google Play are registered trademarks of Google Inc.

The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Cochlear is under license.

  1. Mauger SJ, et al. Clinical evaluation of the Nucleus 6 cochlear implant system: performance improvements with SmartSound iQ. Int J Audiol. 2014, Aug; 53(8): 564-576. [Sponsored by Cochlear].
  2. Mauger SJ, et al. Clinical outcomes with the Kanso off-the-ear cochlear implant sound processor. Int J Audiol. 2017, Apr;56(4): 267-276. [Sponsored by Cochlear].
  3. Wolfe J, et al. Benefits of Adaptive Signal Processing in a Commercially Available Cochlear Implant Sound Processor. Otol Neurotol. 2015 Aug;36(7):1181-90.
  4. Cochlear Limited. D1660797. CP1150 Sound Processor Interim Clinical Investigation Report. 2020; Jan.
  5. Good Design. 2017. Kanso® Cochlear Implant Sound Processor - Good Design. [online] Available at: <> [Accessed 20 April 2020].
  6. Cochlear Limited. D1190805. Sound Processor Size Comparison. 2020; March.
  7. Cochlear Limited. D1710313. CP1150 Battery Life Coverage Technical Report. 2020; Mar.