Frequently asked questions | Aqua+

Answers to some frequently asked questions about Cochlear™ Nucleus® Aqua+.

  • What is the Aqua+?

    The Aqua+ is a soft, flexible silicone sleeve that fits over an existing Nucleus® CP810 or CP900 series (including Kanso CP950) and CP1000 processor. When used with the Aqua+ Coil, it allows CI recipients to participate in water activities where additional protection is needed.

  • Is the Aqua+ waterproof?

    Yes, The Aqua+ has achieved an IP68 ingress protection rating in 3 metres to still water for 2 hours.Cochlear also performed extensive "real life" testing to simulate bathing in soapy water and swimming in chlorinated or salt water.

  • Which processor(s) is it compatible with?

    The Aqua+ is designed to work with Nucleus7 (CP1000), Nucleus Kanso (CP950), Nucleus 6 (CP910 or CP920) processors and the Nucleus 5 CP810 processor with rechargeable batteries only.

  • Can I use my regular coil and coil cable with the Aqua+?

    No, the Aqua+ should only be used with the specified Aqua+ Coil. This integrated coil-cable is designed specifically for underwater swimming in all water types, while your standard coil and coil cable are not.

  • Why can't I use Zinc Air batteries?

    Zinc Air batteries require air to remain active and will not work inside the Aqua+ because the Aqua+ is air tight.

  • What do I need in order to use the Aqua+?

    The Aqua+ must be used with the Aqua+ Coil. The Aqua+ Recipient Kit comes with the Aqua+, Aqua+ Coil, Magnet, Mic Lock- Stirrup, Safely Line and Storage Case. New users must start with the Aqua+ Recipient Kit.

  • How do I purchase all this?

    The Aqua+ Recipient Kit is all you need to order if you are a first time user of the Aqua+. It contains everything you need to dive right in! If you need to replace individual parts, you can contact your local Cochlear customer service department.

  • How is the Aqua+ used?

    The user seals the sound processor inside the sleeve and attaches the specially designed Aqua+ Coil to the processor. It can then be worn behind the ear as normal. The Aqua+ is designed to be used without any retention devices. However, if vigorous activity is anticipated, it is recommended to use a retention device such as the Mic Lock - Stirrup provided in the kit.

  • Where can I use the Aqua+?

    The Aqua+ was designed to be used in any water based activity to a depth of 3 metres. Scuba diving is therefore not recommended as depths may exceed 3 metres.

  • Can the Aqua+ be used in all types of water?

    Yes, the Aqua+ can be used in soapy bath or shower water, chlorinated pools, partial salt water/chlorinated pools, salt water and fresh water.

  • Can the Aqua+ be used in a sauna?

    The Aqua+ has passed testing at 70 degrees centigrade at 95% humidity, however, the processor itself is not recommended for use in temperatures above 50 degrees centigrade. So check that the sauna does not exceed 50 degrees centigrade.

  • When should I replace the Aqua+ (sleeve)?

    Testing shows that the Aqua+ (the silicone sleeve) can be used around 50 times. This is an average under test conditions - some users may get many more uses depending on how they use it and how well they take care of it. You should inspect the Aqua+ sleeve for signs of wear or damage before and after each use. If water is detected inside the sleeve it is an indication of damage and it should be replaced.

  • Should I change my MAP settings to use the Aqua+?

    User testing subjects reported good hearing without changing any MAP or program settings. Some recipients may prefer a standard directional (or Everyday) program for use with the Aqua+. Your clinician can create a custom program for you if desired.

  • Is the Aqua+ recyclable?

    Because there are several parts of different materials integrated into the Aqua+, it is not possible to recycle.

  • What happens if the Aqua+ fails?

    In the unlikely event that a sealed Aqua+ fails, the processors intended for use with the Aqua+ have an ingress protection rating of IP57 which will be adequate protection if any leakage occurs. The sound processor warranty remains valid if a processor is damaged while used according to instructions with the Aqua+.

  • Can I wear the Aqua+ and Aqua+ Coil all day?

    The Aqua+ and Aqua+ Coil are designed and tested for periodic use in water. Cochlear does not recommend using the Aqua+ and Aqua+ Coil for extended periods.


Please seek advice from your health professional about treatments for hearing loss. Outcomes may vary, and your health professional will advise you about the factors which could affect your outcome. Always read the instructions for use. Not all products are available in all countries. Please contact your local Cochlear representative for product information.