High Frequency rechargeable hearing aids FEIE vacuum-tube for elderly deaf as Gift Home Health Care with free shipping S-109S

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Sound amplifier for home ear care rechargeable hearing aid care Headphone deaf S-109 Free Shipping
Features: 
*Medium and High Power
*High-performance Headphones
*Clear Sound, Little Distortion

Technical Parameters: 
Max Out :±4dB  130  
Max Gain:±5dB  53    
Frequency Range:   200-3500hz
Working Hours: 20-24hs
Equivalent Noise Input: ≤ 32dBSPL
Harmonic Distortion:≤8 %
Voltage: 1.2V
Current: ≤ 3mA
Battery type and capacity (mah): ≤30
High frequency averages:100

Instructions: 
1.)The wire plug connected to the headset.Then earplug connector(hard) to the headset, earbuds (silica gel) to connect to the headphone connector pedestal 
2.)The battery installation: Gently open the battery compartment cover, put a battery into the battery compartment in the right direction, then close the battery compartment .
3.)Before you use this item ,you have to turn the ON OFF switch to Off,and turn the sound volume to minimum.
4.)Then put this item on you ear, keep it tightly
5.)Next, turn this item ON, adjust the volume until you hear clear sound

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.  
- Please regularly clean the ear plugs or ear molds in order to ensure the normal use of hearing aids. 
- Use for long periods of time, please remove the batteries to prevent battery rot erosion hearing aid components.

Package Content: 
1 x Hearing Aid( including double devices for both ears as show in pictures)
12pcsx Earplug(Different Size)
1 x Instruction manual ( in English)
1pcs*USB Adapter
1pcs*US plug,If you need EU plug ,Please leave us message when you place order
1* clean brush

Warranty: 
•one year

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