Behind Ear Adjustable Health Care Hearing Aid Voice Sound Amplifier

Specifications::

Max sound out put:130+/- 5dB
Sound gain:>= 50dB
Total harmonic wave distortion:<= 5%
Frequency range:300-4000MHz
Input Noise:<=30dB
Voltage:d.c.1.5V
Current:<=4mA

Package :

1 x F-138 BTE Hearing Aid
1 x LR44 1.5v Battery
3 x earplugs
1 x Manual

Note:

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.
Keep the ear plug clean
Remove the battery if you don't use it for long time.

WARRANTY

We'll refund your money if the item hasn't been delivered within 40 days after purchase. You have 2 weeks to request a refund — until day 60.
Product doesn't match the description? Contact us within 30 days after you receive it!
In case of cancellation, money will be refunded to your account within 3 days.