Hearing Aid F-138 Mini Deaf-aids Help Ear Hearing Adjustable ToneHearing Aids

Hearing Aid F-138 Mini Deaf-aids Help Ear Hearing Adjustable ToneHearing Aids

Features:

Sound amplifier behind the ear 

Super mini size and light weight not easily to beseen 

Adjust volume to the minimum before wearing 

Choose an earplug of slightly bigger size to avoidwhistler 

Increase volume gradually to avoid sudden increase insound 

Specifications:

Model: F-138

Max Saturated Sound Pressure: 130dB+5dB 

Sound gain: u2265 50db

Harmonic Wave Distortion:u2264 5% 

Frequency response Range: 300--- 4000 Hz 

Input Noise: u2264 30 dB 

Power Voltage :1.5 V 

Working Current : u22644mA 

Battery Type: AG13 button cell battery (included)

You can buy this item at a price SGD 23.57 of the actual price SGD 86.82 Here