Jinghao JH-D30, Instruction Manual

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V. Matters needing attention, warnings and tips

1. Before fitting the hearing aid, it should go through professional 

inspection and hearing test, and use it under the guidance of a 

doctor or a professional fitting technician of hearing aid.

2. Pay attention to moisture, shock and high temperature of the 

product.

3. Do not immerse the hearing aid in any liquid. Remove the 

hearing aid before swimming and shampooing. After swimming 

or washing, wait for the ear canal to dry before wearing the 

hearing aid.

4. After removing the hearing aid at night, it should be placed in a 

case with a desiccant, protected from light, high temperature 

and high humidity environment, and avoid falling.

5. The external surface of the hearing aid should be kept clean, and 

the earwax in the earplugs should be cleaned frequently.

6. The function and volume control switch should be used correctly, 

open and close as lightly as possible, to avoid excessive force 

and excessive force.

7. Hearing aids should be regularly sent to the fitting center for 

maintenance and inspection to ensure that the hearing aids are 

in good condition.

8. If you feel uncomfortable ears during use, please stop using 

immediately.

9. Please do not put the hearing aid in the reach of infants and 

young children. If swallowed accidentally, please consult a 

doctor immediately.

10. Applicable objects: Suitable for people with air-conducting 

hearing loss of about 30-50dB.

11. Please use hearing aids with hearing aid charging casees.

12. When you do not use hearing aids, please charge the product 

regularly to avoid battery damage; the recommended charging 

time interval of hearing aids is ≤28 days;

meatus;

2) Deafness is unstable, and the degree of hearing loss often 

fluctuates;

3) Complaint with headache, dizziness, earache, tinnitus and other 

symptoms that are not suitable for adaptation;

4) Sudden deafness in the past 3 months; progressive rapid 

deafness; obvious unilateral deafness or other acute ear disease;

5) Effusion in the middle ear and frequent purulence;

6) Central deafness; non-organic deafness;

7) Patients with acute otitis externa and tympanitis;

8) Patients with acute and chronic suppurative otitis media (in the 

period of purulent infection);

9) Patients who are allergic to the material of this product.