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Symbols used in this document
Points out a situation that could lead to serious,
moderate, or minor injuries.
Indicates possible property damage.
Advice and tips on how to handle your device better.
"Made for iPhone" means that an electronic
accessory has been designed to connect specifically to
iPhone and has been certified by the developer to meet
Apple performance standards. Apple is not responsible for
the operation of this device or its compliance with safety
and regulatory standards. Please note that the use of this
accessory with iPhone may affect wireless performance.
Troubleshooting
Problem and possible solutions
Sound is weak.
●
Increase the volume.
●
Charge the hearing instrument.
●
Clean or exchange the ear piece.
Hearing instrument emits whistling sounds.
●
Reinsert the ear piece until it fits securely.
●
Decrease the volume.
●
Clean or exchange the ear piece.
