SONNET EAS Audio Processor

Make the most of your hearing with SONNET EAS audio processor, part of the Electric Acoustic Stimulation system. Featuring a stylish design and flexible connectivity options, SONNET EAS fits right in with your lifestyle.

SONNET EAS Audio Processor

The Ideal Choice

Lightweight, water-resistant, and easy to connect: SONNET EAS is an audio processor built for everyday. Its rechargeable batteries are great for power on the go, and of course, it offers great sound too. What's more, SONNET EAS's acoustic unit is specially molded to fit your unique ear.

  • Optimal sound quality
  • Water-resistant design
  • Wireless connectivity
  • Rechargeable batteries
SONNET EAS Automatic Sound Management

Always Adaptable

If you have a busy lifestyle, you can find yourself in many places during the day, such as busy offices and noisy restaurants. SONNET EAS uses ASM 2.0 and dual microphone technology to let you focus in on the conversation, not the background noise. With less time spent manually changing settings, you can just enjoy chatting with family and friends.

Microphone Directionality focuses your hearing by using two microphones to sharpen the sounds in front of you. This gives you better listening, especially in noisy settings.

Wind Noise Reduction minimizes continuous wind noise, making it easier to hear in outdoor settings. The wind noise reduction can be adjusted for your specific needs.

Automatic Volume Control continuously monitors your environment and seamlessly adjusts volume levels to ensure every sound is heard clearly and comfortably.

Bring sounds closer
SONNET EAS and AudioStream

Simple Streaming

Use the phone you like, and connect it to the audio processor you love. SONNET EAS makes it easy to listen to your favorite music and enjoy phone calls with your loved ones in high-quality, true stereo. Just slide the AudioStream cover over your audio processor to enjoy direct wireless streaming from your smartphone or tablet.


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SONNET EAS Battery Power
SONNET EAS battery pack

Power Up

Go all day, and then some more. With a battery life of up to 60 hours, SONNET EAS gives you days of uninterrupted listening. Alternatively, the easy-to-use rechargeable batteries offer a convenient way to power your SONNET EAS.

SONNET EAS Water Resistance

Make a Splash

With SONNET EAS, you can get caught out in the rain! SONNET EAS’s water-resistant design protects it from everyday splashes and moisture. So whether you’re training at the gym, or simply giving the kids a bath, SONNET EAS has got you covered.

And for swimming lessons, beach days, and other underwater activities, the fully-waterproof WaterWear covers will keep your SONNET EAS safe and dry while you enjoy the water. Just remember to remove the EAS earhook and acoustic unit and replace it with a standard SONNET earhook before use.

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For kids

For Kids

SONNET EAS is the ideal choice for little ears. Its tamperproof design, link-check function, and flexible wearing options mean that your active child can experience great hearing on the go.

SONNET EAS colours

Be Bold

Make your SONNET EAS stand out from the crowd. With the different covers available in a wide range of colors, there are hundreds of combinations to choose from.

If you’d rather your SONNET EAS blended in with your hair, try a Design Cover for your DL-Coil cover. With nine different hair tones available, plus plenty of colorful designs, you can find the Design Cover to suit you.

Just click below to find your ideal look with our interactive Color Configurator.

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Base and Coil
Microphone & Battery Covers
  • Black
  • White
  • Nordic Grey
  • Beige
  • Anthracite
  • Ebony
  • Sienna Brown
  • Cool Grey
  • Creme
  • Baby Blue
  • Baby Pink
  • Orange
  • Green
  • Bordeaux Red
  • Pacific Blue
Additional Coil Covers
Skins for SONNET EAS Audio Processor
SONNET EAS Design Skins

Your Own Style

Want to give your SONNET EAS a makeover? With adhesive skins from DesignSkins, you can change your look in an instant. What’s more, you can also upload your own designs and make your audio processor truly unique.

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Great sound quality is only possible with a great implant. With SYNCHRONY 2 you can benefit from the latest EAS technology and our MRI Guarantee.

But the biggest advantage of SYNCHRONY 2 lies in its super soft electrodes. Find out about MED-EL's electrodes, and how they help you make the most of your hearing.

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See why more than 200,000 recipients rely on MED‑EL for their hearing solutions.

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Find all the information you'll need to care for your SONNET EAS.

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Share experiences with other MED-EL recipients on social media.

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Technical Data

Width: 37.4mm
Length: 56.7mm
Width: 5.9mm
Width: 9.3mm

Audio Processor (Me1320)

Weight and Dimensions

  • 8.8 g (with Rechargeable Battery Micro) SONNET EAS Audio Processor (Me1320)
  • 11.3 g (with two 675 zinc-air batteries) SONNET EAS Audio Processor (Me1320)
  • DL-Coil: 4.6 g, 32.8 mm x 5.8 mm
  • DL-Coil magnets available in five strengths
  • Durable coil cables available in three lengths: 6.5 cm (2.6 in), 9 cm (3.5 in), 28 cm (11.0 in)

Compatible Hardware/Software

  • SYNCHRONY, CONCERTO, SONATA, PULSAR, C40+, C40 implants (Link-check function not available with C40/C40+ implants)
  • MAX Programming Interface
  • MAESTRO System Software 6.0 and later
  • FineTuner Remote Control

Sound Coding Strategies
Available strategies via MAESTRO System Software:

  • FS4 (Fine Structure Processing up to 1 kHz on four apical channels)
  • FS4-p (Fine Structure Processing up to 1 kHz on four apical channels with Intelligent Parallel Stimulation for even higher temporal accuracy)
  • FSP (Fine Structure Processing typically up to 350 Hz on two apical channels)
  • HD-CIS (High Definition CIS)

Product Features

  • Splash-proof design with IP54 rating
  • Dual microphones
  • Datalogging
  • Automatic Sound Management 2.0 (ASM 2.0)
  • Microphone Directionality
  • Wind Noise Reduction
  • Automatic Volume Control with Dual-Loop AGC
  • Tamper-proof design with integrated child safety features
  • Link-check coil function with LED indicator


  • 2.4 GHz Wireless Chip for AudioLink
  • Roger System
  • Telecoil
  • Direct Audio Input
  • FM Systems

Battery Life

  • Up to 60 hours of use with a set of two zinc-air batteries

Color Options
15 color options available, along with 24 design covers

SONNET EAS Battery Options and Accessories

Standard Rechargeable Battery


  • Length: 22 mm
  • Width: 14 mm
  • Height: 7 mm

Battery Characteristics

  • Usage time: Up to 10 hours
  • Charging duration: 3-4 hours
  • Lifetime: >500 charging/discharging cycles

Micro Rechargeable Battery


  • Length: 16 mm
  • Width: 14 mm
  • Height: 7 mm

Battery Characteristics

  • Usage time: Up to 7 hours
  • Charging duration: 3-4 hours
  • Lifetime: >500 charging/discharging cycles

Charging Unit

  • Four simultaneous charging slots
  • Power and charging indicator lights
  • USB powered: 5V DC, 500ma
  • USB power adapter: 100–240V AC (~50/60 Hz)

Mini Battery Pack


  • Length: 66 mm
  • Width: 29 mm
  • Height: 14 mm
  • Weight (without battery): <13 g Battery Characteristics
  • Usage time: Up to 37 hours with one AAA battery or up to 16 hours with one DaCapo Powerpack


Waterproof Accessory

  • Rated IP68
  • Waterproof up to 4 metres depth.
  • Can be used in salt, fresh, and chlorinated water.
  • Only to be used with non-breathable batteries such as Rechargeable Battery, or size 675 silver-oxide or alkaline.
  • The EAS earhook and acoustic unit must be removed and replaced with a SONNET earhook before using WaterWear.

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