KLEERSOUND Hearing Innovation Series Premium Hearing Aid
Insertion & Removal
•
Hold unit as shown in picture A
•
Firmly insert unit to the ear canal as shown in picture B
•
Turn the Hearing Aid 90 degrees as shown in picture C
Please ensure that the Hearing Aid sits securely and comfortably in the
canal.
Importance of a Deep Seal
•
A deep eartip seal will ensure the best performance of the
device and prevents an occlusion effect* (hollow voice).
•
A deeply-seated eartip in the canal reduces the occlusion effect.
*The
occlusion effect
occurs when an object fills the outer portion of a person's ear canal,
and that person perceives "hollow" or "booming" echo-like sounds of their own voice. It is
caused by bone-conducted sound vibrations reverberating off the object filling the ear
canal. When talking or chewing, these vibrations normally escape through an open ear
canal; most people are unaware of their existence. When the ear canal is blocked, the
vibrations are reflected back toward the eardrum. Compared to a completely open ear
canal, the occlusion effect can boost low frequency (usually below 500 Hz) sound pressure
in the ear canal by 20dB or more.
This effect is often experienced by Hearing aid users who only have a mild to moderate
high-frequency Hearing loss, but use Hearing aids which block the entire ear canal.
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