# Partial deafness/High frequency sensorineural hearing loss

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 [ Electrical-Acoustic Stimulation (EAS) for ](https://hearbetter.medel.com/en-ca/indications/category/electrical-acoustic-stimulation-eas-for/) 

#  Partial deafness/High frequency sensorineural hearing loss 

 

##  Indications 

- Partial sensorineural hearing loss
- Drop in the high-frequency range from approximately 1500 Hz (air conduction hearing thresholds). See the area marked in red in the diagram.
- Monosyllable score ≤60% at 65dB SPL in best aided condition
- No air-bone gap &gt;15dB
- Realistic expectations
- Readiness for rehabilitation
 
 

 ![](https://hearbetter.medel.com/wp-content/uploads/2025/12/Group-1056-1.png) 

 

 

 

 

##  The key features of the Synchrony 2 for EAS are 

    

 Special atraumatic electrode carrier for partial insertion to preserve residual hearing 

    

 MRIs of 1.5 and 3.0 Tesla\* without magnet removal surgery.\*\* 

    

 Extremely high product reliability and safety for your patients 

    

 Improved communication, including on the phone 

    

 Better speech understanding in noise 

    

 Natural sound quality 

 

### Sonnet 2 EAS Audio Processor

    

 Automatic settings adjustment to listening environment 

    

 Noise reduction 

    

 Lightweight and easy to wear 

    

 Directional microphones 

    

 Streaming options 

    

 Splashproof or waterproof with protective cover 

 

\*\*The SYNCHRONY 2 cochlear implant is MR conditional. Recipients with a SYNCHRONY 2 Cochlear Implant may be safely MRI scanned at 0.2, 1.0, 1.5, and 3.0 Tesla following the conditions detailed in the instructions for use.

\*\*Unless required for diagnostic reasons.

 

 [ View product ](https://www.medel.com/hearing-solutions/electric-acoustic-stimulation) 

 

 

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 hearbetter **|** 2026 Apr. 

 

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###  [ Study: Long-term Hearing Preservation in Electric Acoustic Cochlear Implant Candidates ](https://hearbetter.medel.com/en-ca/study/study-long-term-hearing-preservation-in-electric-acoustic-cochlear-implant-candidates-2/) 

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 [ View all studies ](/indications) 

 

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