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IP Rating = Ingress Protection Rating. IP21
rating indicates that the device is protected
against solid foreign objects of 12,5 mm and
greater. Protected against vertically falling
water drops.
Temperature during transportation and
storage: –20° to +60° Celsius (–4° to +140°
Fahrenheit).
Humidity during transportation and storage:
0% to 70%, if not in use. See instruction in
chapter 25.2 regarding drying the hearing aid
after use.
Atmospheric pressure during operation
transportation and storage: 500 hPa to 1060
hPa
During transportation keep dry.
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