Using a cochlear implant

Answers to some common questions about living with a cochlear implant.

  • Do I have to limit my sports activity? What about scuba diving and swimming?

    For swimming, you will need to remove the external component when you swim, much like you would have to remove a hearing aid. The internal part of the cochlear implant is not affected by water. However, you can swim with your processor on if you use the Aqua Accessory. The Aqua Accessory has been designed to be used with the Nucleus 5 and 6 BTE sound processor in any water-based activity to a depth of 4 metres. It is a single-use plastic enclosure that completely seals in your processing unit, cable and coil. It is designed for use with rechargeable batteries only. You can use the Aqua Accessory in salt water, a soapy bath/shower, chlorinated pools - anything that is safe for skin contact.

    For scuba divers, the internal implant is validated to withstand pressure at a depth of 25 metres (82 feet) underwater, but use of the Aqua Accessory is not recommended for Scuba diving as depths may exceed 4 metres. It is recommended that you check with your surgeon or clinician before participating in a dive, because there may be other medical conditions that you will need to consider.

    For contact sports you should wear a helmet to protect your equipment. Boxing and other aggressive sports are discouraged.

  • Are MRI scans safe with a cochlear implant?

    The magnetic field in MRI scanners exerts force on any magnetic materials in the vicinity. This can be an issue for people with some cochlear implants, particularly those with a fixed magnet.

    If you have one of the Nucleus® 24 range of cochlear implants you can have an MRI scan:

    • up to 1.5 Tesla leaving the magnet in place during the scan1
    • over 1.5 Tesla and up to 3.0 Tesla by temporarily removing the magnet in a simple outpatient procedure1

    Over 0.2 Tesla and up to 1.5 Tesla, a head bandage and splint may be required.1



    1. MRI compatibility varies by country depending on regulatory approvals in each country. Please check the MRI guidance provided in your country by contacting your local cochlear representative or clinic before proceeding with an MRI scan.

  • What type of batteries do the processors take?

    Behind-the-ear processors use small high-powered, zinc-air style batteries similar to those used in hearing aids, whilst bodyworn processors normally use rechargeable or standard AA or AAA batteries (depending on the model). Your Cochlear™ implant team will be able to suggest the best battery type for your processor.

  • What is a 'microlink'?

    A 'microlink' is a miniaturised Radio Aid (FM) system for hearing aid and cochlear implant users. The microlink state-of-the-art receiver attaches directly to the sound processor, enhancing speech understanding, particularly in difficult hearing situations. This tiny receiver is compatible with Phonak's range of transmitters as well as those produced by other manufacturers. For more information refer to Phonak's website. Children wishing to take advantage of microlink technology may get funding via local education services, whilst adults can seek funding through a variety of different charitable and professional bodies.

  • Do I need to avoid magnetic toys or magnetic underlays?

    You can safely use these items as they have low magnetic strength.

  • Can I have an x-ray at the dentist?

    Yes, cochlear implant recipients can have x-rays at the dentist.

  • How long do the batteries in the processors last?

    Batteries for the behind-the-ear model of sound processor typically last several days, whilst the rechargeable batteries used in the bodyworn processor normally last for one day. Generally if you are in noisy environments your sound processor works harder and therefore requires more battery power.

  • How do I get the best out of my device when listening to music?

    Whatever your personal taste, listening to music is one of life’s joys. For some implant recipients, listening to music comes very easily, but for others, it may take a little time.

    It’s important to remember that cochlear implants were primarily designed to help with speech perception. Whilst speech and music share some acoustic similarities, there are also several critical differences. Factors like your individual hearing biology, the type of music, the listening conditions and even your personal motivation can all affect your ability to enjoy music. With practice, you’ll develop the skills you need to hear music. The important thing is to establish realistic expectations. Music may not sound exactly the same as before your hearing loss, but with the right approach, many recipients find they can enjoy listening to music they love. Practice will help you fully appreciate music, and the following is a list of tips for developing your new music listening skills.

    • Choose the listening environment carefully

    Music will generally sound more pleasant in a quiet room with no echo. Some people like to use earphones or direct connection to the sound processor, while others prefer using speakers. Test your options and use good quality sound equipment.

    • Choose your music carefully

    Music that was familiar to you before your hearing loss can be easier to enjoy.
    Start with music that features fewer instruments, such as solos or small ensembles, rather than music played by large bands or orchestras. Songs that repeat the same musical patterns or words can be easier to pick up. Some recipients report that children’s music can be good listening practice for adults too!

    • Be strategic and realistic about listening

    Listening practice should be broken up into short, but frequent sessions. This can be much more effective than one or two long sessions. Don’t expect things to sound perfect immediately. Many people report that music sounds better the more they listen to it.

    • Aim for good sound quality

    Keep the volume at a moderate level. Some people find that digital music formats are easier to understand e.g. CDs, MP3s or digital music players.

    • Use visual input to assist your ears and brain

    Use visual clues to help make sense of the music such as watching a singer’s lips or the rhythmic action of the piano player’s fingers, to help make sense of the music. Read along with the lyrics. If you don’t have them, you can often look them up on the internet.

    •  Broaden your music listening goals

    Remember that music is more than just notes – it’s also a social activity that brings people together. Why not plan and prepare a music event to enjoy with others? If you’re attending a musical event and you become overwhelmed, think about taking a silence break. Turn your processor down or off, or walk outside until you’re ready to continue listening. Be proactive about your listening environment. For example, when making a reservation at a restaurant, ask to be seated away from loud speakers so that any background music won’t make conversation difficult. For more information on listening to music, please contact your hearing professional.

  • What should I consider when travelling with my Cochlear device?

    Please visit our Travel page for more information.

  • What are some tips for using use the telephone?

    For the first few months after your Cochlear system has been switched on, you’ll be busy listening and interpreting a world of new sounds around you. When you’re ready to start, there are steps you can take to improve your ability to use the phone.

    For more advice on making your phone use more successful, contact your hearing professional

    • Will I be able to use the phone?

    Whilst some recipients enjoy immediate success on the phone, it takes time and practice for others.

    • How can I get the best results from my phone use?

    There are several ways to use your speech processor that will help you communicate better on the telephone:

    1. Use the everyday (or microphone) setting.
    2. Use a telephone adapter.
    3. Use the telecoil (a program specifically for use with the telephone or in environments that have telecoil facilities).
    4. Use mobile phone and audio accessories.
    5. Use the telephone on the everyday setting.

    This method works with all Cochlear ear-level and body worn speech processors. Here’s how to use the everyday (microphone) setting:

    1. The microphone sits at the top of your ear, near the earhook, capturing the speech sounds from the telephone earpiece.
    2. Your telephone earpiece should be in line with the microphone of the processor.
    3. You may need to move the telephone earpiece slightly until you find the strongest signal.
    4. Use the telephone with a telephone adapter
    5. Telephone adapters directly connect ESPrit™ 3G and SPrint™ speech processors to the telephone. They work with corded telephones that have a keypad on their base.
    • Use the telephone on the telecoil setting

    Telecoils send a signal directly to your processor without interference from background noise. To use this setting, the telecoil function must be activated on the speech processor and can only be used with a compatible telephone that has a telecoil facility.

    How to use the telecoil function:

    1. Position the handset slightly lower on your ear and further back than the position suggested for the everyday setting. This position is also appropriate if you are using a mixed telecoil and microphone setting.
    2. Ensure that the handset is not held too high, too far back behind your ear or placed directly over your ear as the signal won’t be optimal.

    The following Cochlear speech processors have telecoil capability:

    • Nucleus 5 Sound Processor - has patented automatic telecoil detection (which can be enabled by your audiologist), where the processor automatically detects the telecoil signal and activates the telecoil.
    • Freedom and ESPrit 3G speech processors - access the telecoil via your speech processor controls or a program set by your audiologist.
    • SPrint - A telecoil adapter can be purchased separately from Cochlear to enable telecoil capabilities with these devices.
      The Nucleus 5, Freedom™ and ESPrit™3G speech processors have the capacity to mix the telecoil and microphone input so they can be heard at the same time. You should discuss the telecoil function with your audiologist or clinician.
    • Use other mobile phone and audio accessories

    There are a range of accessories that you can use with the phone. The following products are available through Cochlear and have proven popular with many recipients. We recommend trying them for yourself as every ear hears differently:

    • NoiZfree® Music & Mobile - a special hands-free accessory that plugs into your mobile phone for hands-free conversation, improved speech clarity and reduced distortion and background noise. Can also be connected to iPods and walkmans. This is a single ear hook not compatible with Nokia mobile phones. Order number Z61135. 
    • NoiZfree® Beetle - this Bluetooth headset interfaces with your mobile phone, transmitting speech directly to your speech processor. It virtually eliminates the interference buzz that’s sometimes experienced when using a speech processor with a mobile phone. Order number Z61261.
    • NoiZfree® Nokia Monaural Telecoil Induction Earhook – a Mobile Induction Earhook compatible with Nokia mobile phones only. Order number Z61136.

      For more information please contact your local Cochlear office or distributor.
    • What should I look for when choosing a phone?

    All recipients have a personal preference, and what works for one may not necessarily work for another. If possible, try different models before making a selection.

    Some features you might want to look for when purchasing a new phone include:

    • volume control
    • caller ID
    • an integrated answering machine
    • a high quality speaker phone.

    When purchasing a cordless phone:

    • Look for an analog cordless phone as they tend to provide the best sound quality and telecoil compatibility.
    • Choose extended-range analog cordless phones, such as 2.4 GHz phones, as they usually offer a clearer signal than those in the 900 MHz range.
    • Avoid purchasing cordless phones labelled ‘digital’ or ‘digital spread spectrum’, especially if you plan to use a telecoil with the phone.

    When purchasing a corded phone:

    Look for the same features as listed in cordless phones. If you are using a telephone adapter be sure to select a corded phone with the keypad in the base of the phone, rather than in the handset. If a store brand telephone isn’t adequate for your needs, there are also some specialty phones that may be more suitable.

    When purchasing a mobile phone, we advise you to visit a retail store and try out different phones. If you plan to use a telecoil with your mobile phone, make sure to test its compatibility too.

    • How can I practise my phone skills?

    Practising auditory only skills seems to help most recipients. Your hearing professional can provide the best techniques for your situation. Here are some techniques they might suggest:

    • Repeat sentence and word lists with family or friends.
    • Have someone read you a sentence or word, and then repeat it back to them.
    • Practise taking messages from other family members.
    • Start off with familiar names, phone numbers and addresses, or favourite foods, colours and activities.
    • Move onto more detailed messages once you’ve built up your confidence.
    • Read along with audio books and recordings. This gives you an opportunity to listen to something over and over, as well as practice reading along. You’ll find that libraries are usually a good place to source audio books.
    • Listen to phone service messages. Try listening to recorded messages on the phone, such as a weather or time service. These services are often free.
    • Join specialised rehabilitation programs: skill-building programs like Sound and Way Beyond™ can help you practice and develop your ability to use the phone.




Please seek advice from your medical practitioner or health professional about treatments for hearing loss. They will be able to advise on a suitable solution for the hearing loss condition. All products should be used only as directed by your medical practitioner or health professional. 

Not all products are available in all countries. Please contact your local Cochlear representative.