25
Not clear,
distorted
Excessive
whistle from
instrument
• Weak battery
• Poor fitting microphone tube
• Hearing instrument is damaged
• Hearing aid not properly inserted
• Microphone not properly seated
• With telephone use
• Instrument settings not at opti
-
mum
• Replace battery
• Consult your hearing care
professional
• Consult your hearing care
professional
• Re-insert carefully
• Re-seat carefully
• Review ”Telephone Use” section
• Consult your hearing care
professional