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F-138 Adjustable Tone Digital Hearing Aid Behind Ear Sound Amplifier

F-138 Adjustable Tone Digital Hearing Aid Behind Ear Sound Amplifier Professional Instruments & Tools

Description :

F-138 Adjustable Tone Digital Hearing Aid Behind Ear Sound Amplifier


This digital amplifier can help you get a more clear sound, it is a great item to help people pick a better hearing. Convenient wear
Low noise,low distortion.

The wire plug connected to the headset.Then earplug connector (hard) to the headset.
earbuds (silica gel) to connect to the headphone connector pedestal  

The battery installation: Gently open the battery compartment cover.
put a AG13/LR44 battery into the battery compartment in the right direction, then close the battery compartment.

Before you use this item ,you have to turn the O-N switch to O(off), and turn the sound volume to minimum.
Then put this item on you ear,keep it tightly.
Next,turn this item on(O-N to N), adjust the volume until you hear clear sound.

Specification :

Maximum sound output: 130 ± 5dB    
Sound gain: ≥ 50dB    
Total harmonic distortion: ≤ 5%   
Frequency range: 300Hz ~ 40000Hz    
Input Noise: ≤ 30 dB    
Operating voltage: 1.5V    
Battery model LR44
Current: ≤ 4mA
Weight: 74g

Package included :

1 x Digital Tone Hearing Aid
2 x 1.5V Battery
2 x Earplug
1 x Earplug Connector
1 x English User Manual


Details pictures :
 









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  • Views: 1576
  • Product Code: SKU036129
  • Availability: In Stock
  • 294 SEK

Tags: F-138, Adjustable, Tone, Digital, Hearing, Aid, Behind, Ear, Sound, Amplifier

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