Personal Sound Pocket Amplifier, Hearing Aid Health Device For The Deaf

Specifications:

Working Voltage: DC1.5V
Working Current:: Less than 4mA
Package Size: 8.5 x 12 x 3.3cm
Net Weight: 120g
Model Number: F-16
Frequency Range: 450~3500 hz
Pocket Hearing aid
Max Sound Output: 129+5 dB
Max Sound Gain: 55dB + 5dB
Frequency Range: 450~3500 hz
Battery: 1 x AA battery (Without Battery)
Working Voltage: dc1.5V                     
Color: As the picture shows
Item Size: 6.6 x 4.3 x 1.6cm   : 8.5 x 12 x 3.3cm                            
Net Weight: 29g

Package Included:

1 x F-16 Hearing aid
4 x Earplug (different sizes)
1 x User manual
1 x Box

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.
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 sure no air leakage.
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.