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 amazing hearing.

Design Award 2019

Awarded to the SYNCHRONY System, comprising the SONNET 2 Audio Processor and accessories, SYNCHRONY 2 Cochlear Implant, and MAESTRO 8.0 fitting software.

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

SYNCHRONY 2 has been 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.

SYNCHRONY 2 uses advanced coding strategies, designed to give you natural sound quality. This helps you to hear the high and low tones, and the fine details of both everyday conversations and your favourite songs. What’s more, MED-EL cochlear implants are the only implants that offer this kind of technology.

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SYNCHRONY 2 Individualized CI

The Right Fit

You’d never wear shoes that didn’t fit your feet, so why choose a cochlear implant that doesn’t fit your ear? SYNCHRONY 2 is an individualized cochlear implant—that means it has an electrode array that is the ideal fit for your individual cochlea. With the right electrode array, 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 SYNCHRONY 2 has also been designed to make your surgery as simple as possible. After an easy surgery, you can get back on your feet, and start enjoying the next stage of your hearing journey.

SYNCHRONY 2 - Made for MRI

Made For MRI

Statistics show that every one of us will need an MRI at some point in our life. With some cochlear implants, this can mean extra surgery to remove the magnet in your implant, plus time without your audio processor as you recover from the surgery.

But SYNCHRONY 2 is different. Its revolutionary magnet means you can have MRIs of up to 3.0 Tesla without magnet removal surgery.* In fact, the way you have an MRI is no different with or without a hearing implant.

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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 to 12 electrode channels
  • 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 0.2, 1.0, 1.5 and 3.0 Tesla
  • No magnet removal required even at 3.0 Tesla

Removable Magnet

  • Magnet removable for minimised 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

FORM Series

Designed specifically for malformed cochleae and for instances where leakage of cerebrospinal fluid (CSF) is expected. Featuring 24 platinum electrode contacts and SEAL technology designed to aid closing of the cochlear opening.


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


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


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

* 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.
**** Whereby “free” means “not made with latex” according to current FDA guidance.
***** It has been demonstrated that no known hazards exist in specified MRI environments under conditions as described in the SYNCHRONY 2 cochlear implant product labeling. 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.

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