Jinghao JH-A39 User Manual

JH-A39

Jinghao JH-A39 Specifications

General

Brand	Jinghao
Model	JH-A39
Category	Hearing Aid
Language	English

Summary

Quick Start Guide

Changing Hearing Aid Earplugs

Recharging Hearing Aids

Details on charging the hearing device and case, including charging times and voltage.

Instructions for Use

Distinguishing Left and Right Devices

Choosing and Installing Earplugs

Earplug Installation and Wearing

Step-by-step guide for installing earplugs and wearing the hearing aid correctly in the ear.

Operating the Hearing Device

Turning the Hearing Device On and Off

Procedure for powering the hearing device on and off using the big button.

Adjusting Volume Levels

How to change the sound volume using the power button, with 6 levels available.

Charging Procedures

Charging the Hearing Aids

Charging Case Operation

Maintenance and Cleaning

Cleaning the Hearing Instruments

Technical Specifications

Nano CIC Unit Specifications

Performance Metrics

Troubleshooting

Addressing No Sound or Weak Sound

Solutions for issues related to no sound or weak sound from the hearing device.

Resolving Distorted Sound

Fixing Device Not Working

Troubleshooting steps for when the hearing device is not functioning at all.