Product General Information
| Place of Origin: |
Zhejiang, China |
| Brand Name: |
AcoSound |
| Model Number: |
L4-RIC-M-N |
| Certification: |
FDA ISO13485 FCC EMC MDSAP Etc. |
| OEM & ODM Service |
• Logo printing
• Packaging customization
• Product color customization
|
Commercial Terms of Products
| Minimum Order Quantity: |
• Standard models: MOQ 100 pcs
• OEM orders: MOQ 500 pcs
|
| Delivery Time: |
• Standard orders: 7–15 days
• OEM/ODM orders: 20–35 days
|
| Sample Policy: |
• Samples available for testing
• Sample lead time: 3–7 days
|
| Warranty Policy |
• 1–2 years warranty
• Free spare parts support
• Technical after-sales service
|
Product Description
The L4-RIC-M-N Receiver-in-Canal (RIC) Hearing Aid is a professionally engineered digital hearing solution designed to provide clear, natural, and comfortable sound amplification for individuals experiencing moderate to severe hearing loss. Built on the advanced ACOD2101 Intelligent Multi-Core DSP platform, this hearing aid combines intelligent sound processing, adaptive feedback cancellation, environmental noise reduction, and personalized fitting capabilities to deliver a superior listening experience in various daily environments.
Unlike conventional hearing aids that simply amplify all sounds, the L4-RIC-M-N utilizes ERAC 1.0 Context Analysis-Based Intelligent Multi-Compression Technology, enabling the device to analyze surrounding acoustic environments and automatically optimize sound output for speech clarity and listening comfort. This intelligent processing ensures that users can better understand conversations while reducing listening fatigue throughout the day.
The device features a 4-channel compression system with 8 independently adjustable frequency bands, allowing hearing care professionals to precisely tailor amplification according to individual hearing profiles. Whether the user is participating in a business meeting, enjoying family conversations, watching television, or spending time in noisy public spaces, the hearing aid adapts dynamically to provide balanced and natural sound reproduction.
Applications
The L4-RIC-M-N hearing aid is suitable for a wide range of hearing care applications and user scenarios:
Moderate to severe hearing loss rehabilitation
Daily communication enhancement with family and friends
Professional and workplace use in offices and meetings
Social activities and community engagement
Television and multimedia listening
Senior hearing care programs
Audiology clinics and hearing centers
Government and healthcare hearing projects
OEM/ODM hearing aid brands
Educational and public service environments
Technical Specifications
| Model |
L4-RIC-M-N |
| OSPL 90(dB) |
MAX 109 / HFA 105 |
| FOG 50(dB) |
MAX 45 / HFA 40 |
| THD(Hz) |
500:3% / 800:3% / 1600:3% |
| RTG |
Target 40 / Measure 40 |
| EQ(dB) |
25 |
| Battery current(mA) |
2.3 |
| Frequency range(Hz) |
200-5000 |
| Channel |
4 |
| ERAC Context Analysis Based Intelligent Multi-Compression Technology |
ERAC1.0, Dual-Knee |
| Independent Adjustable Compression & Amplification Channels |
4 |
| Independent Adjustable Band |
8 |
| ACOD Intelligent Multi-Core DSP |
ACOD2101 |
| DSP Channels |
16 |
| DFBC Adaptive Feedback Cancellation |
AFC2.0 |
| SIW Technology |
SIW |
| ENDR Environment Detection and Noise Reduction System |
ENDR1.0, Max 16dB |
| Directional Dual-Microphone Technology |
All Direction |
| Programs Selectable |
4 |
| Internal Sound Field Assessment System |
✓ |
| Internal Audiometer System |
✓ |
| Adjustable Turn-on Delay |
✓ |
| Occlusion Effect Management |
✓ |
| Low Battery Power Notification |
✓ |
| Adjustable Notification Volume |
✓ |
| Volume Control |
✓ |
| FM Interface Compatible |
optional |
| Auto Phone Function |
optional |
| Memory After Power-off |
✓ |
| Personalized Data Storage |
Standard |
| Nano Coating Technology |
✓ |
Competitive Advantage
Advanced Intelligent Compression Technology – ERAC 1.0 Context Analysis with dual-knee processing automatically adapts amplification strategies for natural sound quality.
High-Performance Multi-Core DSP Platform – ACOD2101 delivers fast signal processing, accurate sound reproduction, and 16-channel DSP architecture for greater precision.
Superior Feedback Elimination – AFC 2.0 Adaptive Feedback Cancellation significantly reduces whistling for a comfortable listening experience.
Effective Environmental Noise Reduction – ENDR 1.0 reduces background noise by up to 16 dB, helping users focus on speech.
Flexible Professional Fitting – 4 compression channels and 8 adjustable bands allow precise tailoring to individual hearing profiles.
Enhanced Speech Recognition – Dual-microphone directional technology improves speech pickup and localization.
Comprehensive User-Centered Features – Volume control, adjustable startup delay, low-battery alerts, memory retention, and personalized data storage.
Durable and Reliable Construction – Nano-coated housing offers protection against moisture, sweat, and environmental exposure.
Optional Connectivity Expansion – Support for optional FM systems and automatic phone functionality.
Ideal for OEM/ODM Customization – Competitive platform for private-label brands seeking advanced technology at attractive cost-performance.
The Professional's Starting Point
Walk into any audiology clinic. The shelves hold dozens of hearing devices. Some cost thousands. Others promise features few users need. Where does a professional start when building a reliable product line?
The L4-RIC-M-N hearing aid answers that question. Four channels. Sixteen DSP processors. Sixteen dB noise reduction. Nothing excessive. Nothing missing. A 4-channel RIC device that serves moderate to severe loss without overcomplicating.
What the L4-RIC-M-N Hearing Aid Does Differently
Most entry-level hearing aids simply boost volume. The L4-RIC-M-N hearing aid analyzes first. ERAC 1.0 compression listens to incoming sound. Soft speech gets gentle lift. Loud inputs receive restraint. Dual-knee processing creates two transition points - one for soft-to-moderate, another for moderate-to-loud.
Result? No sudden volume jumps when someone laughs or a door closes. The 4-channel RIC device handles everyday acoustics smoothly.
Feedback Cancellation That Works
Whistling embarrasses hearing aid wearers. AFC 2.0 stops this. Two cancellation levels work together. First level catches early feedback signs. Second level eliminates any remaining whistle. First-time hearing aid users gain confidence knowing unexpected squeals won't happen.
Noise Reduction Without Speech Damage
ENDR 1.0 reduces steady background noise by 16dB. The L4-RIC-M-N hearing aid distinguishes between constant hum (HVAC, traffic, fan) and intermittent speech. Noise fades. Conversations stay clear. This matters for users who spend time in restaurants, waiting rooms, or open offices.
Four Channels, One Clear Purpose
Some hearing aids pack 16 or 20 channels. Impressive numbers. But moderate to severe loss doesn't always need that complexity. The L4-RIC-M-N hearing aid uses 4 compression channels - enough for proper fitting, not so many that setup becomes confusing.
Eight adjustable bands let hearing professionals fine-tune specific frequencies. Sixteen DSP channels handle sound analysis. For daily conversations, home environments, television watching, and workplace communication, this setup works.
Who Actually Needs 4 Channels?
Moderate to severe hearing loss patients benefit most. Someone who misses consonants in conversation. A person who turns up TV volume higher than family members prefer. An older adult trying their first hearing device.
The L4-RIC-M-N hearing aid fits these scenarios. Not over-engineered. Not under-powered. Just right for entry-level professional needs.
RIC Design Advantages
Receiver-in-canal placement puts the speaker closer to the eardrum. Sound travels shorter distance. High-frequency response improves. The main body rests behind the ear, keeping electronics away from earwax and moisture. The 4-channel RIC device combines discretion with performance.
Fitting Without Frustration
Internal sound field assessment helps professionals verify settings. The internal audiometer system supports basic hearing testing. Four programs store different environments - home, social, outdoor, TV. Volume control stays accessible through physical buttons.
Power That Lasts
Battery current measures 2.3mA. Compare this to older hearing devices drawing 3mA or more. Lower current means longer battery life. Users replace batteries less frequently. Low battery notifications arrive with adjustable volume - no surprises when power runs low.
Memory after power-off remembers volume and program settings through battery changes. No re-pairing. No reprogramming.
Nano Coating for Real Life
Morning coffee. Afternoon walk in humidity. Evening cooking near steam. Daily activities threaten unprotected hearing electronics. Nano coating technology creates a hydrophobic barrier. Sweat and moisture bead up and roll off. SIW technology adds another protection layer.
Comparisons to Avoid Confusion
Some buyers wonder: why not buy a cheaper personal sound amplification product (PSAP)? PSAPs lack medical certification. No FDA registration. No professional fitting. No verified noise reduction.
The L4-RIC-M-N hearing aid carries FDA clearance, ISO13485 certification, and MDSAP approval. Clinics trust these credentials. Patients receive legitimate medical-grade hearing support.
What This Model Doesn't Do
Being honest helps buyers choose correctly. The L4-RIC-M-N hearing aid lacks wind noise management. Outdoor walks on breezy days may produce microphone noise. Transient noise management isn't present - sudden loud sounds won't receive special softening. Environment recognition doesn't exist; users manually switch programs.
These omissions keep costs down. Buyers who need advanced features should look at higher-channel models (8, 12, 16 channels) in the AcoSound catalog.
Professional Fitting Tools
Internal sound field assessment and audiometer functions simplify clinic workflows. Four independent compression channels and eight adjustable bands provide enough flexibility for most moderate to severe loss patterns. The L4-RIC-M-N hearing aid integrates into existing fitting systems without retraining staff.
OEM and ODM Ready
Distributors value customization options. Logo printing on the hearing device body. Packaging customization for brand identity. Color changes for market preferences. Standard MOQ stands at 100 pieces. OEM orders require 500 pieces. Delivery runs 7-15 days standard, 20-35 days for OEM orders.
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