It is highly unlikely that the Swim Kit would fail. However, if it does and water enters the Swim Kit, the Neuro 2 processor meets the IP68 standard for water and dust protection.
This is the highest classification against water and dust ingress and will probably prevent it from being damaged. If you have followed the instructions for use that come with the Swim Kit and your Neuro 2 has been damaged following use, the sound processor warranty will apply.
In case of Swim Kit failure within the warranty period (one year or 50 uses, depending on which one is reached first), please return the faulty Swim Kit to your local Oticon Medical customer service provider for their help.