SYNCHRONY 2 Cochlear Implant

If you’re looking for the ideal cochlear implant, look no further than SYNCHRONY 2. Not only is it packed full of the latest hearing technology, it’s also designed with the safety and reliability to give you years of hearing enjoyment.

HTI Awards Logo 2


It's gratifying to be recognized for our pioneering spirit and dedication to fulfilling our mission.” – Raymond Gamble, President & CEO, MED-EL North America.

Learn more about this award here.

Synchrony cochlear implant
MED-EL Synchrony Cochlear Implant


Great Sound Quality

SYNCHRONY 2 is designed for optimal sound quality, helping you to hear the world as it was meant to sound.


Ideal Electrode

MED-EL’s wide range of electrode arrays means that you get the ideal fit for your individual cochlea.


Simple Surgery

MED-EL implants are designed for simple surgery, helping you to get back on your feet afterwards.



Experience hassle-free MRIs* with SYNCHRONY 2—no surgery,^ no discomfort,^^ and no hearing downtime.


Reliable Design

SYNCHRONY 2’s safe and reliable design means you can benefit from years of great hearing.

SYNCHRONY 2 Important Decision

An Important Decision

It’s important to choose the right audio processor, but it’s even more important to choose the right implant. Why? Because it’s the implant that most influences how well you hear.

And unlike your audio processor, which you can upgrade regularly, your implant will stay with you for many years. Therefore it’s important to choose a cochlear implant that will give you the best hearing both now, and in the future.

SYNCHRONY 2 Individualized CI

Technology That Follows Nature

MED-EL cochlear implants use advanced coding strategies, designed to give you the closest to natural hearing of any CI system. This helps you hear the high and low tones and the fine details of both everyday conversations and your favorite songs.

What’s more, our cochlear implants are individualized, so that the electrode array fits your individual cochlea. This way, you can make the most of your cochlear implant and experience the best hearing you possibly can.

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SYNCHRONY 2 - Easy Surgery

An Easy Surgery

It’s a fact that all cochlear implants need to be surgically implanted. Thankfully, our SYNCHRONY implants are not only the smallest and lightest titanium implants available but have also been designed to make your surgery as simple as possible. After the surgery, you can start enjoying the next stage of your hearing journey.

SYNCHRONY 2 - Made for MRI

Made For MRI

Most of us will need an MRI at some point in our lives.

SYNCHRONY 2's revolutionary magnet means you can have MRIs of 1.5 and 3.0 Tesla* without magnet removal surgery.^

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Great Protection. Guaranteed.

Because of our long and positive experience with MRIs and cochlear implants, we offer a life-long MRI guarantee.*** We promise to replace your implant in the very unlikely event that it's damaged during an MRI scan.

This life-long MRI guarantee for cochlear implants is the first and only to be offered by any company and covers all MED-EL cochlear implants from as far back as 1994. So you can feel confident about any future MRI scans.

The Reliable Choice

You will have your cochlear implant for many years to come, so it’s important that your implant is reliable enough to give you years of use.

SYNCHRONY 2 has been designed based on decades of MED-EL experience. Every part has been fine-tuned for maximum reliability and safety. From high-tech materials to a first-class quality inspection at our European headquarters, each SYNCHRONY 2 is built to provide you with years of reliable hearing.


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Audio Processors
MED-EL Audio Processors

Our Audio Processors

Once you've decided on your SYNCHRONY 2 cochlear implant, it's time to choose an audio processor to match. SYNCHRONY 2 is built to be compatible with all available MED-EL cochlear implant audio processors, so you can choose the right option for your lifestyle.

And if you change your mind in the future? Then you can upgrade your processor and benefit from the latest in hearing technology.

Technical Data

Width: 24mm
Length: 47.3mm
⌀ 1.0mm

Cochlear Implant (Mi1250)

Stimulation Features

  • Sequential non-overlapping stimulation on 12 electrode channels
  • Simultaneous (parallel) stimulation on 2 electrode channels (FS4-p)
  • 24 independent current sources
  • Stimulation rates of up to 50,704 pulses per second
  • Range of pulse phase duration: 2.1–425.0 μs/phase
  • Interphase gaps of 2.1, 10, 20 and 30μs
  • Time resolution (nominal values): 1.67 μs
  • Current range (nominal value): 0–1200 μA per pulse phase

Pulse Shapes

  • Biphasic, symmetric triphasic, and triphasic precision pulses

Comprehensive Diagnostic Toolkit

  • Status Telemetry
  • Impedance and Field Telemetry (IFT)
  • Auditory Nerve Response Telemetry (ART™)
  • Electrically Evoked Auditory Brainstem Response (EABR)
  • Electrically Evoked Stapedius Reflex Threshold (ESRT)

Housing Design

  • Impact resistance up to 2.5 Joule
  • Unique PIN variant with fixation pins for additional stability
  • Hermetically sealed titanium housing
  • Stimulator: 18.8 mm x 24 mm x 4.5 mm
  • Coil: 29.0 mm diameter x 3.3 mm thick (typical)
  • Weight: 7.7 g

Safety Features

  • Independent safety capacitors for each electrode channel
  • Unique Implant ID (IRIS)
  • Biocompatibility standard according to ISO 10993-1
  • Latex-free****

MRI Conditions

  • MR Conditional at 1.5 and 3.0 Tesla*
  • No magnet removal required even at 3.0 Tesla^

Removable Magnet

  • Magnet removable for minimized image distortion
  • Rotatable magnet within hermetic titanium housing
  • Self-aligning to external magnetic field
  • Conical shape for secure placement

Electrode Arrays

FLEX Series

The softest and most flexible electrode arrays, designed for Structure Preservation and Complete Cochlear Coverage. Featuring 19 platinum electrode contacts and FLEXtip technology for atraumatic insertion. All FLEX series electrodes feature a green orientation marker for improved visibility and positioning during insertion.


  • 26.4 mm stimulation range
  • Diameter at basal end: 1.3 mm
  • Dimensions at apical end: 0.5 x 0.4 mm


  • 23.1 mm stimulation range
  • Diameter at basal end: 0.8 mm
  • Dimensions at apical end: 0.5 x 0.4 mm


  • 20.9 mm stimulation range
  • Diameter at basal end: 0.8 mm
  • Dimensions at apical end: 0.5 x 0.3 mm


  • 20.9 mm stimulation range
  • Diameter at basal end: 0.8 mm
  • Dimensions at apical end: 0.5 x 0.3 mm


  • 15.4 mm stimulation range
  • Diameter at basal end: 0.8 mm
  • Dimensions at apical end: 0.5 x 0.3 mm

Classic Series

Features 24 platinum electrode contacts.


  • 26.4 mm stimulation range
  • Diameter at basal end: 1.3 mm
  • Diameter at apical end: 0.5 mm


  • 20.9 mm stimulation range
  • Diameter at basal end: 0.8 mm
  • Diameter at apical end: 0.5 mm


  • 12.1 mm stimulation range
  • Diameter at basal end: 0.7 mm
  • Diameter at apical end: 0.5 mm

* The SYNCHRONY 2 cochlear implant is MR conditional. Recipients with a SYNCHRONY 2 Cochlear Implant may be safely MRI scanned at 1.5 and 3.0 Tesla following the conditions detailed in the instructions for use.
** Fine-structure coding is not indicated for pre-lingual children in the USA.
*** The terms and conditions of the MRI guarantee can be found at
**** Whereby “free” means “not made with latex” according to current FDA guidance.

^ Unless required for diagnostic reasons
^^ SYNCHRONY 2 has a self-aligning magnet, so there’s no painful magnetic pulling on the implant during an MRI scan.

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