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• The Naída CI M90 sound processor with the MListening Check, an M Battery
or M Zn-Air Battery Pak, a M T-Mic, M Earhook, or M Acoustic Earhook,
andaheadpiece.
The following product configuration has an IP rating of 52 (protection against dust;
protection against failure due to dripping water when tilted up to 15º):
• The Naída CI M90 sound processor inside the MWaterproof Battery with
anon-waterproof headpiece.
The following product configurations have an IP rating of 54 (protection against dust;
protection against failure due to water splashes from all directions):
• The Naída CI M90 sound processor with an MBattery or M Zn-Air Battery Pak,
an M T-Mic or MAcoustic Earhook, and a Slim HP or Slim HP Mic.
• The Naída CI M90 sound processor with an M Zn-Air Battery Pak,
anMEarhook, and a Slim HP or Slim HP Mic.
The following product configuration has an IP rating of 57(protection against dust;
protection against failure due to one-time immersion for 30 minutes to a depth up to
1meter and after drying overnight in a drying system):
• The Naída CI M90 sound processor with an M Battery, an M Earhook,
andaSlimHP or Slim HP Mic.