SONNET 2 or RONDO 3: Which Audio Processor Is Best for Me?

Trying to decide between SONNET 2 and RONDO 3? We’ve got some tips to help you pick the right audio processor for your cochlear implant.

Woman with SONNET 2 audio processor and woman with RONDO 3 audio processor looking at each other

But we’re here to help with some useful information you can use to pick the best option for your lifestyle and needs. Whichever you choose, you’ll be selecting MED-EL quality and an audio processor with superior sound quality.

The Latest Audio Processor Technology

Whether you’re riding in the car, spending time with friends at a noisy bar, or relaxing at home, SONNET 2 and RONDO 3 are equipped with Automatic Sound Management 3.0 and Adaptive Intelligence that enable you to hear your best everywhere you go.

Dual-loop automatic gain control adapts volume levels to make loud sounds more comfortable and soft sounds easier to hear. And with enhanced noise reduction and two microphones that focus in on speech, you will never miss out on conversations again with SONNET 2 or RONDO 3.

Since both options provide you with top technology, there’s no need to compromise when it comes to your audio processor’s sound quality.

Behind-the-Ear or All-in-One

Not only is MED-EL dedicated to providing you with top technology, but we also keep innovation and functionality in mind when it comes to design. If you wear glasses, you may prefer RONDO 3 since it sits off the ear. But if you’re used to wearing behind-the-ear hearing aids, SONNET 2’s familiar and secure design may be more comfortable for you.

Woman running while wearing SONNET 2 audio processor

Blend in or Stand Out

Once you’ve chosen which audio processor is right for you, the personalization options are practically endless! Whether you’d prefer to blend in or stand out, there are plenty of designs for you to choose from.

For SONNET 2, you can use the color configurator to customize the microphone and battery covers. And there are many design covers for the coil as well.

There are lots of options to choose from for RONDO 3 as well, from discreet hair patterns to eye-catching designs. You’re certain to find covers to suit your style. RONDO 3’s all-in-one design is also easy to use, especially for people with limited dexterity. There are even simplicity covers available.

Ready for Anything

Water is no problem for RONDO 3 and SONNET 2. With an IP54 rating, SONNET 2 can withstand everyday splashes and dust, and RONDO 3’s IP68 rating ensures that it won’t even be damaged by sweat or rain.

Man swimming while wearing RONDO 3 audio processor with WaterWear

WaterWear—which is available for both audio processors—even makes watersports and swimming possible. SONNET 2 also has ActiveWear and BabyWear wearing options for extra security and peace of mind.

Batteries: Wireless Charging and Flexibility

Long-lasting batteries and convenient charging options are also important to keep you hearing all day long. With RONDO 3, simple wireless charging provides enough battery life for all-day hearing. And the battery is rechargeable, reducing battery costs and waste. A charging cable is also available for extra power on the go.

For users who like flexibility, SONNET 2’s modular design makes switching parts out easy, and it also has a variety of different battery pack options. With two disposable Zinc-Air batteries, you can have up to 60 hours of hearing.

There are also rechargeable options: The Rechargeable Battery Max provides up to 17 hours of power, the Rechargeable Battery Standard up to 10 hours, and the Rechargeable Battery Micro up to 7 hours.

A Variety of Connectivity Options

AudioStream, which slides on over SONNET 2’s battery, enables wireless streaming of music and phone calls directly to your audio processor from your smartphone or tablet.

Another connectivity option compatible with both RONDO 3 and SONNET 2 is AudioLink. It streams sound via Bluetooth or the headphone jack directly to SONNET 2 or RONDO 3. AudioLink also serves as a remote microphone to hear people further away when socializing in noisy environments.

Jewelry box containing RONDO 3 audio processor design covers, AudioLink, and the FineTuner Echo remote

Change Audio Processor Settings on the Go

Both SONNET 2 and RONDO 3 offer simple device management. The AudioKey 2 app can change settings, locate your audio processors, and check battery status—all directly from your smartphone. Alternatively, you can use the FineTuner Echo remote with its simple display to adjust volume, change the program, and activate connectivity.

Compatibility Is Key

Thanks to our backwards compatibility, even if you received your CI years ago, you can update to RONDO 3 or SONNET 2. If you have an EAS (electric acoustic stimulation) system, then SONNET 2 is the audio processor for you. SONNET 2 and RONDO 3 are both compatible with MED-EL’s ABIs (auditory brainstem implants). And both audio processors are also available for bimodal users with a CI on one side and a hearing aid on the other.

Regardless of whether you’ve decided that SONNET 2 or RONDO 3 is best suited to your needs and lifestyle, you’ll be choosing MED-EL reliability. Our audio processors are designed with durability in mind, but in the event that something happens to your audio processor, you can count on MED-EL’s local care specialists to get you hearing again.

For more information about these audio processors, visit our product pages: RONDO 3, SONNET 2. And once you’ve made your decision, get in touch with a MED-EL representative near you!

Get In Touch

Want to learn more about our audio processors? Fill in the form below to contact your local MED-EL team.

Field is required

Field is required

Field is required

Field is required

Field is required

Field is required

Field is required

  • Afghanistan
  • Albania
  • Algeria
  • American Samoa
  • Andorra
  • Angola
  • Anguilla
  • Antarctica
  • Antigua and Barbuda
  • Argentina
  • Armenia
  • Aruba
  • Australia
  • Austria
  • Azerbaijan
  • Bahamas
  • Bahrain
  • Bangladesh
  • Barbados
  • Belarus
  • Belgium
  • Belize
  • Benin
  • Bermuda
  • Bhutan
  • Bolivia
  • Bosnia and Herzegowina
  • Botswana
  • Bouvet Island
  • Brazil
  • British Indian Ocean Territory
  • Brunei Darussalam
  • Bulgaria
  • Burkina Faso
  • Burundi
  • Cambodia
  • Cameroon
  • Canada
  • Cape Verde
  • Cayman Islands
  • Central African Republic
  • Chad
  • Chile
  • China
  • Christmas Island
  • Cocos (Keeling) Islands
  • Colombia
  • Comoros
  • Congo
  • Congo, the Democratic Republic of the
  • Cook Islands
  • Costa Rica
  • Cote d'Ivoire
  • Croatia (Hrvatska)
  • Cuba
  • Cyprus
  • Czech Republic
  • Denmark
  • Djibouti
  • Dominica
  • Dominican Republic
  • East Timor
  • Ecuador
  • Egypt
  • El Salvador
  • Equatorial Guinea
  • Eritrea
  • Estonia
  • Ethiopia
  • Falkland Islands (Malvinas)
  • Faroe Islands
  • Fiji
  • Finland
  • France
  • France Metropolitan
  • French Guiana
  • French Polynesia
  • French Southern Territories
  • Gabon
  • Gambia
  • Georgia
  • Germany
  • Ghana
  • Gibraltar
  • Greece
  • Greenland
  • Grenada
  • Guadeloupe
  • Guam
  • Guatemala
  • Guinea
  • Guinea-Bissau
  • Guyana
  • Haiti
  • Heard and Mc Donald Islands
  • Holy See (Vatican City State)
  • Honduras
  • Hong Kong
  • Hungary
  • Iceland
  • India
  • Indonesia
  • Iran (Islamic Republic of)
  • Iraq
  • Ireland
  • Israel
  • Italy
  • Jamaica
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Kiribati
  • Korea, Democratic People's Republic of
  • Korea, Republic of
  • Kuwait
  • Kyrgyzstan
  • Lao, People's Democratic Republic
  • Latvia
  • Lebanon
  • Lesotho
  • Liberia
  • Libyan Arab Jamahiriya
  • Liechtenstein
  • Lithuania
  • Luxembourg
  • Macau
  • Macedonia, The Former Yugoslav Republic of
  • Madagascar
  • Malawi
  • Malaysia
  • Maldives
  • Mali
  • Malta
  • Marshall Islands
  • Martinique
  • Mauritania
  • Mauritius
  • Mayotte
  • Mexico
  • Micronesia, Federated States of
  • Moldova, Republic of
  • Monaco
  • Mongolia
  • Montserrat
  • Morocco
  • Mozambique
  • Myanmar
  • Namibia
  • Nauru
  • Nepal
  • Netherlands
  • Netherlands Antilles
  • New Caledonia
  • New Zealand
  • Nicaragua
  • Niger
  • Nigeria
  • Niue
  • Norfolk Island
  • Northern Mariana Islands
  • Norway
  • Oman
  • Pakistan
  • Palau
  • Panama
  • Papua New Guinea
  • Paraguay
  • Peru
  • Philippines
  • Pitcairn
  • Poland
  • Portugal
  • Puerto Rico
  • Qatar
  • Reunion
  • Romania
  • Russian Federation
  • Rwanda
  • Saint Kitts and Nevis
  • Saint Lucia
  • Saint Vincent and the Grenadines
  • Samoa
  • San Marino
  • Sao Tome and Principe
  • Saudi Arabia
  • Senegal
  • Seychelles
  • Sierra Leone
  • Singapore
  • Slovakia (Slovak Republic)
  • Slovenia
  • Solomon Islands
  • Somalia
  • South Africa
  • South Georgia and the South Sandwich Islands
  • Spain
  • Sri Lanka
  • St. Helena
  • St. Pierre and Miquelon
  • Sudan
  • Suriname
  • Svalbard and Jan Mayen Islands
  • Swaziland
  • Sweden
  • Switzerland
  • Syrian Arab Republic
  • Taiwan, Province of China
  • Tajikistan
  • Tanzania, United Republic of
  • Thailand
  • Togo
  • Tokelau
  • Tonga
  • Trinidad and Tobago
  • Tunisia
  • Turkey
  • Turkmenistan
  • Turks and Caicos Islands
  • Tuvalu
  • Uganda
  • Ukraine
  • United Arab Emirates
  • United Kingdom
  • United States
  • United States Minor Outlying Islands
  • Uruguay
  • Uzbekistan
  • Vanuatu
  • Venezuela
  • Vietnam
  • Virgin Islands (British)
  • Virgin Islands (U.S.)
  • Wallis and Futuna Islands
  • Western Sahara
  • Yemen
  • Yugoslavia
  • Zambia
  • Zimbabwe

Field is required

Thanks for your message. We will reply as soon as possible.


Thanks for your message. We will reply as soon as possible.

Send us a message

Field is required

John Doe

Field is required

Field is required

What do you think?

Send Message

The content on this website is for general informational purposes only and should not be taken as medical advice. Please contact your doctor or hearing specialist to learn what type of hearing solution is suitable for your specific needs. Not all products, features, or indications shown are approved in all countries.

Processing Comment

Sorry. There was an error. Please try again.

Thanks for your feedback. Your comment will be published after approval.

Leave your comment