JH-A26A OTC Hearing Aid (Display Version) User Manual

Document Version: V1-10
Model: JH-A26A (With Display Charging Case)
Manufacturer: Huizhou Jinghao Medical Technology Co., Ltd. (JINGHAO)

Download the Manual: (Place a prominent Download Button here linking to the PDF file in your Media Library or Kod Cloud.)
[ 📥 Download JH-A26A OTC Hearing Aid User Manual (PDF) ]

Product Overview #

This user manual provides comprehensive instructions for the JH-A26A Over-the-Counter (OTC) Hearing Aid equipped with a digital display charging case. Please read this manual thoroughly and completely before using the product. This device is intended for users who are 18 years or older and should be used under the guidance of professionals.

Table of Contents #

1. Important Safety Warnings & When to See a Doctor
2. Contraindications & Cautions
3. Getting to Know Your Device & Accessories
4. Using the Hearing Aids (Fitting, On/Off, Volume, Programs)
5. Using the Charger & Display Case
6. Care, Maintenance & Cleaning
7. Troubleshooting Guide
8. Technical Specifications & Regulatory Information

1. Important Safety Warnings (OTC Compliance) #

• Age Restriction: If you are younger than 18, DO NOT use this device. You should go to a doctor, preferably an ENT, because your condition needs specialized care. OTC hearing aids are only for users who are age 18 or older.
• When to See a Doctor: If you have any of the following problems, please see a doctor (preferably an ENT):
  • Your ear has a birth defect, unusual shape, or was injured/deformed in an accident.
  • You saw blood, pus, or fluid coming out of your ear in the past 6 months.
  • You have a lot of earwax, ear pain, or think something is in your ear.
  • You get really dizzy, have vertigo, or hear ringing/buzzing in only one ear.
  • Your hearing changed suddenly in the past 6 months or gets worse then better again.
• Pain Warning: This hearing aid should not cause pain when inserting it. Remove the device if it causes pain or discomfort. If pain persists, contact your hearing healthcare professional or report it to the FDA.

2. Contraindications #

Do NOT use this device if you have:

• Congenital atresia of the external ear or deformity of any part of the ear canal.
• Unstable deafness, or fluctuating hearing loss.
• Persistent headaches, dizziness, earaches, or tinnitus.
• Sudden onset of hearing loss within the past 3 months, rapid progressive deafness, or unilateral hearing loss.
• Effusion (secretions/discharge) in the ear or frequent purulence (pus).
• Acute otitis externa, tympanitis, or acute/chronic suppurative otitis media.
• Allergic reactions to the materials of this product.

3. Getting to Know Your Device #

• Hearing Aid: Features an eartip (soft silicone), sound outlet, thread (for easy removal), multi-function button, sound inlet, and charging contacts.
• Charging Case: Features charging slots for L/R hearing aids, a digital charging display indicator (shows case percentage and L/R charging status), upper cover, and a USB charging port.
• Markings: “L” and “R” markings help distinguish the left and right hearing aids.

4. Using the Hearing Aids #

• Activation: Plug in the charging case, place hearing aids inside, and wait for the battery level to show on the display.
• Fitting Eartips: Choose the suitable size (L/M/S). Push firmly to ensure it is fastened securely. Pull gently to check.
• ON/OFF: Hearing aids automatically turn ON about 8 seconds after removal from the case. They automatically turn OFF and start charging when placed back correctly.
• Volume Control: 6 volume levels. Short press the multi-function button to adjust. It has a memory function to remember the last setting.
• Program Switch: 4 preset programs. Long press the multi-function button for about 3 seconds to switch.
• Wearing: Insert the hearing aid with the thread facing downwards. If whistling occurs, reinsert correctly or replace with a bigger eartip.

5. Using the Charger #

• Charging the Hearing Aids: Place them in the correct L/R slots. The display shows the battery status. When the battery is low, the hearing aid will prompt “please charge” every 6 minutes.
• Charging the Case: Plug one end of the USB cable into the back of the case, and the other end into a power adapter. Keep the flip top closed while charging.

6. Maintenance & Cleaning #

• Do not drop the hearing aids or expose them to high temperatures, humidity, or liquids.
• Do not use sharp tools to dislodge earwax.
• Clean eartips daily with the provided cleaning tool. Wipe the hearing aid surface with a soft cloth. Do not use alcohol or solvents.
• Replace eartips every 3-6 months or when they become stiff, brittle, or discolored.

7. Troubleshooting Guide #

• Feedback/Whistling: Check if the eartip is broken or clogged. Ensure correct insertion. Try a larger eartip or remove earwax.
• No Sound/Voice is Weak: Check if the device is on, battery is charged, volume is high enough, or if the microphone is clogged.
• Charging Case Issue: Ensure the adapter is powered, the USB cable is connected correctly, and the charging contacts are clean.

8. Technical Specifications (Program 1) #

• Test Standard: ANSI S3.22-2014
• Max Output (OSPL90): 107dB
• HFA FOG@50: 32dB
• Total Harmonic Distortion (THD): 2%
• Equivalent Input Noise (EIN): 12dB
• Frequency Response Bandwidth: f1=200Hz, f2=5000Hz
• Battery Life: ≥20 hours
• Operating Environment: 0°C~40°C, 30%-75%RH

Regulatory Information & Manufacturer #

Manufacturer: Huizhou Jinghao Medical Technology Co., Ltd.
Address: No. 207, South SiHuan Rd, ZhongKai Hi-tech District, Huizhou, Guangdong, China. Zip Code: 516000
Website: www.jhhearingaids.com | Email: emily@jhhearingaids.com
Warranty: This limited warranty covers defects in material and workmanship for one (1) year from the date of delivery.