User manual
27
• Occasionally, whistling may
occur when you have a blockage
of wax in the ear canal from a
cold or any condition that causes
sound to be reected from the
ear canal. In these cases, the
t may be ne and the whistling
will disappear when the condition
is corrected.
• Check for cracks in the AIR
Tubing or Base. Cracks may
become another entrance
for sound to enter and cause
feedback.
For optimal performance, the Hearing Aid Ear Domes and AIR
Tubing should be replaced every 3-6 months. Replacements
can be ordered at: www.mdhearingaid.com/accessories.