Hearing Aid Machine F 138

For sale by BABU VAI 4 Nov 2:41 amMirpur, Dhaka

Tk 2,250

Hearing Aid Machine F 138

AXON F-138 Hearing Aids BTE Hearing Aid Tone Adjustable Sound Amplifier


BTE Hearing aid
Max Sound Output: 129dB ± 4dB
Max Sound Gain: 50dB ± 5dB
Harmonic Wave Distortion: =5%
Frequency Range: 450~3500 hz
Input Noise: =30 dB
Battery: AG13 button battery (included)
Working Voltage: 1.5 V
Working Current: =4mA
Color: As the picture shows
Size: 2.66 x 1.72 x 0.75in
Package Size: 3.94 x 3.15 x 1.38in
Net Weight: 0.16lb

Package included:

1 x F-138 Hearing aid
3 x Earplug (different sizes)
2 x AG13 button cell battery
1 x User manual


Adjust volume to the minimum before wearing.
Choose an earplug of slightly bigger size to avoid whistler.
Increase volume gradually to avoid sudden increase in sound.
If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make no air leakage.
Keep the ear plug clean
Remove the battery if you don't it for long .

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