Medical Instrument Hearing Apparatus Acoustic Earphone Behind Ear Sound Amplifier Mini Device Free Shipping s-203 | Красота и

Medical Instrument Hearing Apparatus Acoustic Earphone Behind Ear Sound Amplifier Mini Device Free Shipping s-203 | Красота и

Digital hearing aid sound amplifier free drop shipping

Promotion!S-203analog digital sound amplifiersound  hearing aid Free Shipping

Features:

1.Medium power, suitable for moderate hearing loss persons

2.The built-in sound generator and thechip is of good sound quality

3.low power consumption, and comfortable wearing.

4.N-H low frequency compression gear to reduce noise

5.High fidelity and low microphone distortion

Technical Parameters:

1.Max Out :≥ 129 ± 3dB

2.Max Gain:≥ 40 ± 5dB

3.Frequency Range: 450~ 3800Hz

4.Max Working :12h

5.Equivalent Noise Input: ≤ 32dBSPL

6.Harmonic Distortion:≤10%

7.Voltage: 1.5V

8.Current:≤ 10mA

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

3 x Earplug(Different Size)

Sample:

•Available
•Delivery within 3 days

Warranty:

•one year

Delivery:

We send the products  by sea or by air accroding to the demand of customers