CI and EAS Audio Processor

These support guides will help you handle and care for the SONNET 2 & SONNET 2 EAS Audio Processor.

Basic Care and Maintenance

Follow these basic and important care instructions to help improve the functioning of your SONNET 2 and extend its life.

General Cleaning
Clean SONNET 2 regularly by wiping it with a soft, damp cloth. Don’t use cleaning solutions. Use extra care when cleaning small parts such as the battery contacts and microphone covers.


Battery Contacts
Inspect the battery contacts regularly; clean and dry them as necessary. To clean them, use a cotton swab and a small amount of rubbing alcohol. Gently wipe them dry. Avoid touching the battery contacts.


Microphone Covers
If the microphone cover gets wet, wipe it dry or replace it. Replace the microphone cover every three months, or sooner if it appears dirty or if sound quality has worsened.

Sonnet-Drying Kit

Use the drying kit every night to allow SONNET 2 to dry out completely. Remove all batteries from the audio processor before placing it in the drying kit.


Protect SONNET 2 from excessive or unnecessary exposure to water. If your audio processor gets wet, gently wipe it dry with a soft absorbent cloth.


Don’t leave SONNET 2 in direct sunlight, especially inside of a vehicle. Don’t expose your audio processor to extreme temperatures.


Refer to your user manual for more information.