JH-A19A Hearing Aid (Display Version) User Manual

Document Version: V2-1 (Upgraded Eartip Version)
File Number: JH-C-A19A-20260210-01
Manufacturer: Huizhou Jinghao Medical Technology Co., Ltd. (JINGHAO)

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Product Overview #

This user manual provides comprehensive instructions for the JH-A19A Rechargeable Hearing Aid (Display Version). Please read this manual thoroughly before using the product. This device is intended to compensate for impaired hearing and should be used under the guidance of professionals.

Table of Contents #

1. Important Safety Instructions & Indications
2. Contraindications & Warnings
3. Tips for Better Communication
4. How to Use Your Device (Fitting, On/Off, Volume Control)
5. Using the Charger & Charging Case
6. Maintenance and Cleaning
7. Troubleshooting Guide
8. Technical Specifications & Warranty

1. Important Safety Instructions #

• Intended Use: The hearing aid is intended to compensate for impaired hearing. (Mild to moderate air conductive hearing loss).
• Side Effects: Patients with sensitive skin to silicon may experience ear canal pruritus. First-time use may cause slight ear pain.
• Warnings:
  • Keep small parts (hearing instrument, eartips, battery) out of children’s reach.
  • Do not immerse in liquid, expose to strong electromagnetic fields, or excessive heat.
  • Remove devices prior to X-ray, MRI, or CT scans.
  • If parts become stuck in the ear canal, seek medical assistance immediately.

2. Contraindications #

Do NOT use this device if you have:

• Chronic suppurative otitis media (CSOM), congenital ear atresia, or ear discharge.
• Acute otitis externa and tympanitis.
• Sudden onset of hearing loss within the past 3 months, or rapidly progressive deafness.
• Allergic reactions to the materials of this product.

3. Using the Hearing Aids #

• Activation: Remove stickers and place hearing aids in the charging case. Plug in the case to activate.
• ON/OFF: Hearing aids automatically turn ON about 8 seconds after removal from the charging case. They automatically turn OFF when placed back inside.
• Volume Control: 6 volume levels. Short press the multi-function button to adjust. The device has a memory function to remember your last setting.
• Program Switch: 4 preset programs. Long press the multi-function button for 3 seconds to switch.
• Insertion Depth: Maximum insertion is 9.8mm, leaving a safe distance of at least 13.2mm from the eardrum (complies with OTC regulations).

4. Maintenance & Cleaning #

• Wipe clean daily with a soft cloth. Avoid high humidity, heat, and liquids.
• Clean eartips with the provided cleaning tool. Replace eartips every 3-6 months or when they become stiff or discolored.
• Clean charging contacts regularly with a dry cloth.

5. Troubleshooting Guide #

• Feedback/Whistling: Check if the eartip is broken or clogged. Try a larger eartip size or remove earwax.
• No Sound: Check if the device is turned on, or if the battery is depleted. Clean the microphone.
• Charging Issue: Ensure the hearing aids are correctly placed in the L/R slots and the charging contacts are clean.

6. Technical Specifications (Program 1) #

• Max Output (OSPL90): 108dB
• HFA-OSPL90: 106dB
• Frequency response bandwidth: F1=200Hz, F2=5500Hz
• Operating Environment: 0℃~40℃, 30%-75%RH

Regulatory Information & Manufacturer #

Manufacturer: Huizhou Jinghao Medical Technology Co., Ltd.
Address: Floor 1st, 4th, 5th, 9th & 10th, No. 1 Building, No. 207, South SiHuan Rd, ZhongKai Hi-tech District, Huizhou City, 516000, Guangdong Province, P.R. China.
Website: www.jhhearingaids.com | Email: emily@jhhearingaids.com
EU Representative (MedPath GmbH): Mies-van-der-Rohe-Strasse 8, 80807 Munich, Germany.

Warranty: This limited warranty covers defects in material and workmanship for one (1) year from the date of purchase.