1. Introduction
The Acosound LW16-BTE-M is a state-of-the-art 64-channel programmable Bluetooth digital hearing aid designed to assist individuals with mild to severe hearing loss. This device offers advanced features including an audiologist-developed hearing test, autofitting to your exact hearing profile, and control via a dedicated mobile application. Its sleek design ensures a discreet and comfortable fit.
2. Product Overview
2.1 Components
- Acosound LW16-BTE-M Hearing Aid Unit
- Sound Guide Tube(s)
- Various sizes of Earplugs (for optimal fit)
- Charging Case (for storage and charging)
- Cleaning Tools (not explicitly shown but implied for maintenance)
2.2 Key Features
- 64 DSP Channels: Provides precise sound processing for various hearing environments.
- Programmable & Digital: Advanced digital processing allows for personalized settings.
- Bluetooth Connectivity: Seamless connection to the mobile app for control and customization.
- Audiologist-Developed Hearing Test: Integrated test to create a personalized hearing profile.
- Autofit Technology: Automatically adjusts settings to match your exact hearing profile.
- Mobile App Control: Manage programs, volume, and advanced settings directly from your smartphone.
- Remote Support: Access professional assistance for adjustments and queries.
- Dual Microphone Noise Cancelling Technology: Enhances speech clarity by reducing background noise.
- Sleek Design & Discreet Fit: Designed for comfort and minimal visibility.
- Long Battery Life: Up to 78 hours of continuous use.
- Excellent Sound Quality: Features Directional Microphone Technology, Wind + Transient Noise Management System, Advanced Environment Detection and Noise Reduction System, Environment Recognition Management System, Noise Source Tracking and Suppression Technology, USA-Mode Advanced Intelligent Multi-Core Processor, and Directional Speech Enhancement Technology.
3. Setup Instructions
3.1 Unboxing and Initial Preparation
Upon receiving your Acosound hearing aid, carefully open the packaging. The hearing aid unit is typically housed in a protective black box.
3.2 Sound Tube and Earplug Installation
- Remove the sound guide tube and earplug from their packaging.
- Measure the sound guide tube against your ear. Cut the sound guide tube to an appropriate length that fits comfortably around your ear.
- Attach the cut sound guide tube securely to the hearing aid unit.
- Select an earplug that best fits the size of your ear canal. Ensure it creates a snug seal to prevent sound leakage and whistling.
- Attach the selected earplug to the end of the sound guide tube.
3.3 Wearing the Hearing Aid
- Before placing the hearing aid, ensure the volume is set to the lowest level.
- Gently place the hearing aid unit behind your ear.
- Carefully insert the earplug into your ear canal, ensuring it forms a complete seal.
- After inserting, gently push the hearing aid with your fingers and hold for 1-2 seconds to allow the earphone to fully extend and settle.
- Once comfortably in place, turn on the power button and slowly increase the volume to a suitable listening level.
3.4 Open-Fit Tube Option
For users with mild hearing loss, the LW16-BTE-M offers the option to use an open-fit tube. To switch:
- Remove the standard ear hook.
- Replace it with the thin open-fit sound tube.
- Select an appropriate open-fit earplug and attach it to the thin sound tube.
- Wear the hearing aid as described above.
4. Operating Instructions
4.1 Mobile App Control
The Acosound hearing aid can be controlled and customized via its dedicated mobile application, offering both pre-programmed and professional adjustments.
Pre-Programmed Adjustments:
These adjustments are offered in the app and require no technical experience:
- Reduce Feedback
- Improve Muffled Sounds
- Reduce Background Noise
- Enhance Voices & Soft Sounds
- 4 Pre-Programmed Modes: TV, Indoors, Outdoors, Everyday Use
- Customize Left + Right Ear Individually
Professional Adjustments:
Advanced adjustments available through the app:
- Gain Adjustment by Frequency
- Decibel Adjustment by Frequency
- Customize Different Audiograms + Settings For Each Mode
- Bass + Treble Adjustment
- Equalizer + Denoise
- Expert Remote Adjustments
4.2 In-App Hearing Test
The mobile app includes a full-spectrum audiologist-developed hearing test (250-8KHz) that can be personalized for each ear to match your exact hearing profile. Each hearing test result can be saved, with the ability to store up to 20 results. Regular testing is recommended every 3-6 months to monitor hearing and prevent further hearing loss.
5. Maintenance and Care
Proper maintenance ensures the longevity and optimal performance of your hearing aid.
- Protection from Moisture: Do not wear the hearing aid when showering or swimming. Avoid exposing the device to rain or excessive moisture.
- Cleaning: Regularly clean your ear canal to prevent wax buildup. Keep the earplugs clean by wiping them with a soft, dry cloth.
- Battery Care: The LW16-BTE-M uses A312 batteries. Ensure batteries are replaced when low and disposed of properly. Store spare batteries in a cool, dry place.
6. Troubleshooting
6.1 Whistling or Noise
Whistling or feedback noise can occur due to the close proximity of the internal amplifier and microphone, especially when sound is continuously received and expanded. To minimize this:
- Volume Adjustment: Gradually increase the volume after turning on the device. Starting with a high volume can induce howling.
- Proper Earplug Fit: Ensure the earplug completely seals your ear canal without air leakage. Experiment with different earplug sizes to find the best fit.
- Secure Placement: After inserting the hearing aid into the ear canal, gently push it with your fingers and hold for 1-2 seconds. This helps the earphone to fully extend and create a secure seal.
- Initial Volume Setting: Always turn the hearing aid volume to the lowest level before inserting it into your ear. Once inserted and sealed, slowly increase the volume to a comfortable level.
6.2 No Sound or Reduced Sound
- Battery Check: Ensure the battery is correctly inserted and has sufficient charge. Replace if necessary.
- Earwax Buildup: Check for earwax buildup in the ear canal or on the earplug/sound tube, which can block sound. Clean as necessary.
- Hearing Adaptation: If you have experienced hearing loss for a long time, your hearing nerve may need time to adapt. Continue using the hearing aid consistently to stimulate the nerve. If unsure if the device is working, test it on a person with normal hearing.
6.3 Hearing Loss Severity Self-Test Table
Refer to the table below to understand different levels of hearing loss and determine if a hearing aid is suitable for your condition. This table is for reference only; consult a professional audiologist for detailed information.
7. Specifications
| Attribute | Value |
|---|---|
| Model Number | LW16-BTE-M Hearing Aids |
| Brand Name | ACOSOUND |
| Type | BTE Hearing aid / Open fit hearing aid |
| DSP Channel | 64 Channels |
| Material | Medical Resin |
| Applicable User | Mild to Severe Hearing loss |
| Battery | A312 |
| Programmable | Yes |
| Digital or Analog | Digital hearing aid |
| Warranty Period | 2 years |
| Dimensions (Height x Width x Depth) | 33mm x 9.8mm x 5.4mm |
| Weight | 1.9g (.07 oz) |
| Battery Life | 78 Hours Continuous Use |
| Frequency Range | 250-8K Hz |
| Max Output OSPL 90 (dB) / Max HFA output OSPL 90 (dB) | 123 / 118 |
| Peak Gain (dB) / HFA FOG Gain (dB) | 48 / 45 |
| Total Harmonic Distortion (THD%) @ 500Hz, 800Hz, 1600Hz | 3%, 3%, 3% |
| Reference Test Gain (RTG) / Target | 35 |
| Reference Test Gain (RTG) / Measure | 35 |
| EQ Input Noise (dB) | 22 |
| Current Drain (dB) | 2.4 |
8. User Tips
- Hearing Test Frequency: Experts suggest testing your hearing every 3-6 months to monitor changes and prevent further hearing loss.
- App-Based Audiometry: Yes, you can input your audiometry data directly into the mobile app for personalized programming.
- Battery Type: The device uses A312 disposable batteries and is not rechargeable.
- Whistling Prevention: Always ensure a tight seal with the correct earplug size and gradually increase volume to prevent feedback whistling.
- Adaptation Period: If you haven't heard well for a long time, it may take time for your hearing nerve to re-adapt. Be patient and consistent with usage.
9. Warranty and Support
9.1 Warranty
The Acosound LW16-BTE-M Hearing Aid comes with a 2-year warranty period from the date of purchase. Please retain your proof of purchase for any warranty claims.
9.2 Customer Support
Acosound is committed to providing excellent customer service. You can:
- Speak to an Expert: Contact a real Acosound expert 7 days a week for personalized assistance.
- Order Accessories: Easily order replacement parts or accessories.
- Warranty Claims: Benefit from a no-hassle warranty claims process.
- Online Community: Join an online community for support and tips from other users.
