Nucleus® Kanso® 2 Sound Processor

Discover our off-the-ear sound processor with advanced connectivity in a simple and durable all-in-one design.

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Smart has never been so simple

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

The Kanso 2 Sound Processor is the smallest and lightest5,6 off-the-ear sound processor available, with a built-in rechargeable battery and improved dust and water resistance* so you can hear comfortably all day with confidence.

Building on our history of offering advanced connectivity in our Nucleus Sound Processors, the Kanso 2 Sound Processor features direct streaming and control with compatible Apple® and Android™ devices** without the need for any attachments to the sound processor.

Color options to match your preferences

The Kanso 2 Sound Processor is available in five different colors, so you can choose the one that best suits you. Fun and colorful stickers are also available to fit your or your child's personality.


K2_DR_Processor_Black_500x500.pngK2_DR_Processor_Chocolate_500x500.pngKanso 2 Sound Processor SilverK2_DR_Processor_Slate_500x500.pngK2_DR_Processor_Sandy_500x500.png

Build Your Own Kanso 2 Sound Processor

You can build your own Kanso 2 Sound Processor—choose your accessories, pick a color and see what’s included in the standard kit.

Build one now

Hear your best everywhere, every day

"In a place like this, a park, where kids are screaming and playing, the implant does the job of it, kind of tries to block out those sounds that don’t matter and really help me focus on the person that I’m talking with."

- Justin P. - Nucleus® 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 - Nucleus® 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 read the instructions 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.

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

*The Kanso 2 Sound Processor is dust and water resistant to level of IP68 of the International Standard IEC60529. The Kanso 2 Sound Processor with Aqua+ is dust and water resistant to level of IP68 of the International Standard IEC60529. This water protection rating means that the sound processor with the Aqua+ can be continuously submerged under water to a depth of up to 3 meters (9 feet and 9 inches) for up to 2 hours. The Aqua+ accessory should be used when participating in prolonged water activities.

**For compatibility information, visit www.cochlear.com/compatibility.

+All day hearing is defined as 16 hours, expected battery life is up to 18 hours. Battery life may vary by individual.

++ForwardFocus can only be enabled by a Hearing Implant Specialist. It should only be activated for users 12 years and older who are able to reliably provide feedback on sound quality and understand how to use the feature when moving to different or changing environments. It may be possible to have decreased speech understanding when using the ForwardFocus in a quiet environment.

^SNR-NR, WNR and SCAN are approved for use with any recipient ages 6 years and older, who is able to 1) complete objective speech perception testing in quiet and in noise in order to determine and document performance 2) report a preference for different program settings.

§Remote Check is intended for ages 6 and older. The Remote Check feature is only visible and accessible if the feature is enabled by a clinician. Clinicians should consider the suitability of the feature before enabling Remote Check.

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.

Please seek advice from your medical practitioner or health professional about treatments for hearing loss. They will be able to advise on a suitable solution for the hearing loss condition. All products should be used only as directed by your medical practitioner or health professional. Not all products are available in all countries. Please contact your local Cochlear representative.

Views expressed by Cochlear recipients and hearing health providers are those of the individual. Consult your hearing health provider to determine if you are a candidate for cochlear technology and to understand the associated risks and benefits. Individual results may vary.

ACE, Advance Off-Stylet, AOS, AutoNRT, Autosensitivity, Beam, Button, CareYourWay, Carina, Cochlear, 科利耳, コクレア, Cochlear SoftWear, Codacs, ConnectYourWay, Contour, Contour Advance, Custom Sound, ESPrit, Freedom, Hear now. And always, HearYourWay, Hugfit, Hybrid, Invisible Hearing, Kanso, MET, MicroDrive, MP3000, myCochlear, mySmartSound, NRT, Nucleus, Off-Stylet, Slimline, SmartSound, Softip, SPrint, True Wireless, the elliptical logo, WearYourWay and Whisper are either trademarks or registered trademarks of Cochlear Limited. Ardium, Baha, Baha SoftWear, BCDrive, DermaLock, EveryWear, Vistafix, and WindShield are either trademarks or registered trademarks of Cochlear Bone Anchored Solutions AB.

Android, Google Play and the Google Play logo are trademarks of Google LLC. 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.

©2020. 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.

  1. Mauger SJ, et al. Clinical evaluation of the Nucleus 6 cochlear implant system: performance improvements with SmartSound iQ. International Journey of Audiology. 2014. Aug; 53(8): 564-576. {Sponsored by Cochlear}. Mauger SJ, et al.
  2. Clinical outcomes with the Kanso off-the-ear cochlear implant sound processor. Int J Audiol. Published online 09 Jan 2017 (DOI:1080/14992027 2016.1265156)
  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 Ltd. D1660797. CP1150 Sound Processor Interim Clinical Investigation Report. 2020; Jan. Data on file.
  5. Cochlear Limited. CP950 Kanso Sound Processor User Guide. Data on file, July 2016.
  6. MED-EL. Rondo. The World’s First CI Single-Unit Processor. [PDFInternet] [as of August 2016]. Available from: https://s3.medel.com/pdf/US/fl-br/23710_21_RONDO+US+Factsheet.pdf.