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3. Phonak CROS system description
The following table shows what battery you need for
your hearing aid model.
Model Zinc air battery size IEC ANSI
(marking on package) code code
Phonak CROS 312 (brown) PR41 7002ZD
Phonak CROS H2O 13 (orange) PR48 7000ZD
Phonak CROS 312 312 (brown) PR41 7002ZD
Phonak CROS 13 13 (orange) PR48 7000ZD
On the following pages use the labeled drawings to
identify the model and the retention that you use.