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The dome should be changed every three months or when it
becomes stiff or brittle. This is to prevent the dome from
detaching from the tube spout during insertion into or
removal from the ear.
When you are not using your hearing aid, leave the battery
door open so that any moisture can evaporate. Make sure that
you always completely dry your CROS device after use. Store
the CROS device in a safe, dry and clean place.
Do not drop your CROS device! Dropping onto a hard surface
can damage your CROS device.
Always use new batteries for your CROS device. In case a
battery is leaking, replace it immediately with a new one to
avoid any skin irritation. You can return used batteries
to your hearing care professional.
The batteries used in these CROS device should not exceed
1.5 Volts. Please do not use silver-zinc or Li-ion (lithium-ion)
rechargeable batteries as these may cause severe damage to
your CROS device. The table in chapter 5 explains exactly
which type of battery your particular CROS device require.
Remove the battery if you are not using your CROS device
for a long period of time.
Special medical or dental examination including radiation
described below, may adversely affect the correct
functioning of your CROS device. Remove and keep them
outside the examination room/area before undergoing:
Medical or dental examination with X-ray (also CT scan).
Medical examinations with MRI/NMRI scans, generating
magnetic fields.
CROS device don’t need to be removed when passing
security gates (airports etc.). If X-ray is used at all, it will be
in very low doses, and will not affect the CROS device.
Do not use your CROS device in areas where electronic
equipment is prohibited.