JINGHAO Rechargeable Assistive Listening Amplifier Device User Manual

Introduction

This manual provides comprehensive instructions for the safe and effective use of your JINGHAO Rechargeable Assistive Listening Amplifier Device. Designed to enhance sound perception, this device features a discreet earbud-like design and a portable charging case for convenience. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.

The JINGHAO device is designed to facilitate clearer communication in various environments.

Setup

Package Contents

Before first use, verify that all components are present in the package:

• JINGHAO Assistive Listening Amplifier Devices (Left and Right)
• Portable Charging Case
• USB Charging Cable
• Multiple Sizes of Ear Domes (S, M, L)
• Cleaning Brush and Tools
• Instruction Manual

All included accessories for your JINGHAO device.

Initial Charging

The device and charging case should be fully charged before first use. The charging case provides portable power for the earbuds.

1. Place both listening devices into their respective slots in the charging case. Ensure they are seated correctly for charging contacts to align.
2. Connect the USB charging cable to the charging case's USB port and plug the other end into a compatible USB power source (e.g., computer, power bank, car charger, wall adapter).
3. The indicator lights on the charging case will illuminate blue during charging. Once fully charged, the lights will turn white.
4. A full charge for the earbuds takes approximately 2 hours, providing up to 10 hours of usage time. The charging case can provide up to 3 full charges for both earbuds.

The devices charging within their case, indicated by blue lights.

Flexible USB charging options for your convenience.

Indicator light status for charging and full charge.

Fitting the Device

Proper fit is crucial for comfort and optimal sound quality, and to prevent feedback (squealing). The device comes with multiple ear dome sizes to ensure a snug fit.

1. Select the ear dome size (S, M, or L) that best fits your ear canal. A good fit will feel secure and comfortable, creating a seal without causing discomfort.
2. Ensure the microphone on the device is positioned upwards when inserted into your ear. The volume control button should be facing downwards.
3. Gently insert the ear dome into your ear canal, rotating slightly until it feels snug and secure.
4. Warm Tip: Turning on the device after it is properly inserted into your ear can effectively prevent howling or feedback.

Choose the appropriate ear dome size for a comfortable and secure fit.

Instructions for correctly wearing the device to ensure proper fit and prevent it from falling out.

Visual guide for correct and incorrect device placement.

Operating the Device

Power On/Off

The device features a simple single-button operation.

• To turn on the device: Press and hold the large button on the earbud for a few seconds until you hear an indication sound.
• To turn off the device: Press and hold the large button again for a few seconds. You do not need to remove the device from your ear to perform this action.

Volume Control

Adjust the listening volume to your preference using the same large button.

• To increase or decrease volume: Briefly tap the large button. Each short tap will cycle through the available volume levels (1-2-3-4-5-6).
• Find the volume level that provides clear sound without discomfort or distortion.

The multi-function button for power and volume control.

Wearing the Device

Once properly fitted, the device is designed for comfortable, extended wear.

The device is designed to be discreet and comfortable when worn.

Maintenance

Daily Cleaning

Regular cleaning is essential to maintain optimal performance and prevent issues such as reduced sound or charging problems, often caused by earwax blockage.

1. Cleaning the Machine and Charging Contacts: Use the provided cleaning brush to gently remove any debris or earwax from the device's surface, especially around the sound outlet and charging contacts.
2. Cleaning the Earbuds: Carefully clean the ear domes and the area where they attach to the device. Ensure no wax obstructs the sound path.
3. Cleaning the Charging Case: Wipe the inside of the charging case, particularly the charging pins, with a soft, dry cloth to ensure good contact with the devices.

Note: Before wearing your new device, it is recommended to remove any excess wax that may have accumulated in your ear canal. Ear cleaning may be necessary to resolve buzzing issues or poor sound quality.

Step-by-step guide for daily cleaning of your device and charging case.

Troubleshooting

If you encounter any issues with your JINGHAO Assistive Listening Amplifier Device, please refer to the following common solutions:

Specifications

Warranty and Support

JINGHAO stands behind the quality of its products. Your Rechargeable Assistive Listening Amplifier Device comes with the following:

• 30-Day Unconditional Return Policy: If you are not satisfied with your purchase, you may return it within 30 days for a full refund.
• 1-Year Warranty: The device is covered by a 1-year warranty against manufacturing defects from the date of purchase.

For warranty claims, technical support, or any inquiries, please contact JINGHAO customer service through the retailer where you purchased the product or refer to the contact information provided in your product packaging. Please have your model number and purchase date ready when contacting support.