Hearing Aid
User Manual
PHLHA48
I. THE MAIN STRUCTURE,PRODUCT PERFORMANCE
1. THE MAIN CHARACTERISTICS
●Confortable Wearing, fashionable and streamlined design clear and nature sound
●Small size, fashion streamlined design, fit more ear contour
●The gain characteristics: suitable for the mild ,moderate, moderately severe hearing loss
person and the occasions where sound application are needed
●Frequency characteristics: suitable for intermediate frequency, medium-high frequency
and high frequency hearing loss person
●Suitable for otitis media, strong vibration, Senile, tympanic membrane perforation caused
hearing loss person
2. TECHNICAL CHARACTERISTICS TABLE
● Power: DC: 1.4V, with the relative deviation of +5% and -10%
● Ambient Temperature: 5℃-40℃; relative humidity≤80%;
Feature
Technical Parameter
MAX.OSPL
≤(db)
HFA
OSPL±4(db)
MAX.Gain
±5(db)
Frequency
Response
Range(Hz)
Sound
Gain
THD
128±5 dB
115
48
300-4000hz
>30db
<10%
3. SCHEMATIC DIAGRAM OF FUNCTION
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