Product General Information:

Commercial Terms of Products:

Product Parameter Information

Overview: Power BTE Hearing Aid for Severe Hearing Loss

The AcoSound L4-BTE-P-N is a power BTE hearing aid engineered for individuals with severe hearing loss who require maximum amplification without compromising sound clarity. Powered by the proprietary ACOD2101 Intelligent Multi-Core DSP, this behind-the-ear device processes audio across 16 DSP channels, delivering precise amplification that meets the demanding requirements of severe to profound hearing loss cases. For audiologists, hearing clinics, and B2B distributors seeking a reliable power BTE hearing aid, the L4-BTE-P-N offers a technically validated solution backed by FDA, ISO 13485, FCC, and MDSAP certifications.

Adaptive Compression: ERAC1.0 Multi-Band Processing

At the core of its performance is the ERAC1.0 Context Analysis system—an adaptive multi-band compression engine that continuously analyzes the acoustic environment and adjusts output across 4 independent compression channels. This intelligent processing allows the power BTE hearing aid to transition seamlessly between quiet and noisy settings, ensuring consistent speech clarity whether the user is in a clinic waiting room, an office, or a busy public space. For users managing severe hearing loss, this real-time environmental adaptation significantly reduces listening fatigue over extended wear periods.

Feedback Control & Noise Reduction: AFC2.0 + ENDR1.0

The L4-BTE-P-N addresses one of the most persistent challenges in severe hearing loss management: acoustic feedback. Its DFBC Adaptive Feedback Cancellation system (AFC2.0, 2-Level) actively suppresses whistling and feedback artifacts across two independent levels, allowing maximum gain to be applied without introducing distortion. Paired with the ENDR1.0 Environment Detection and Noise Reduction system—capable of attenuating background noise by up to 15 dB—this power BTE hearing aid maintains speech intelligibility in complex multi-source noise environments such as restaurants, classrooms, and transportation hubs.

Speech Clarity: Directional Microphone & SIW Technology

Speech understanding is further reinforced by Directional Dual-Microphone Technology, which supports all-direction pickup while enabling front-focus processing in conversation scenarios. The SIW (Sound Intelligence Widening) technology enhances spatial awareness, delivering a more natural three-dimensional listening experience. Together these features make the L4-BTE-P-N a clinically appropriate power BTE hearing aid for professionals fitting patients across a broad range of severe hearing loss profiles.

Technical Specifications: High-Power Output & Low Distortion

The device's frequency range spans 200 Hz to 5500 Hz, capturing low-frequency environmental cues and high-frequency consonants that are critical for speech discrimination in severe hearing loss. With a maximum OSPL90 of 128 dB and Full-on Gain reaching 51 dB, the L4-BTE-P-N delivers the output levels required for high-power fittings. Total Harmonic Distortion (THD) is held at just 0.03% across 500, 800, and 1600 Hz test frequencies—a meaningful differentiator for power BTE hearing aid applications where high-gain systems are prone to harmonic artifacts that reduce perceived sound quality.

Fitting Flexibility: Built-in Audiometer & Programmable Channels

Fitting flexibility is a priority for B2B clients managing diverse patient populations with severe hearing loss. The L4-BTE-P-N includes an Internal Audiometer System and Internal Sound Field Assessment System for preliminary calibration without external equipment. Four selectable programs accommodate varied listening environments, while 8-band Independent Adjustable Band controls allow precise frequency-specific shaping for each individual ear profile. The device stores personalized settings after power-off, eliminating the need for re-adjustment after battery replacement—a practical advantage for senior care facilities managing hearing aids across large user groups.

User Comfort & Durability Features

User-facing comfort features include Occlusion Effect Management for natural own-voice perception, Adjustable Turn-on Delay for controlled startup behavior, Low Battery Power Notification, and Adjustable Notification Volume. Nano Coating Technology provides moisture and particulate resistance, extending durability across outdoor and active-lifestyle use cases relevant to users with severe hearing loss in varied environments. Optional FM Interface compatibility and Auto Phone Function expand connectivity for educational and telephonic applications.

Application Scenarios

The L4-BTE-P-N power BTE hearing aid is designed to serve a wide range of professional deployment contexts. In audiology clinics, the device's programmable fitting system and internal audiometer allow practitioners to complete initial fittings efficiently, reducing chair time while delivering precise prescriptive targets for severe hearing loss patients. In senior care and assisted-living facilities, the memory-after-power-off function and simple volume control ensure staff can manage devices without repeated professional recalibration. For educational support programs serving students with severe hearing loss, optional FM interface compatibility allows direct integration with classroom FM systems, enabling clear signal delivery in lecture and discussion environments.

OEM/ODM & B2B Procurement

For B2B procurement teams evaluating a power BTE hearing aid for distribution or clinical deployment, the L4-BTE-P-N supports full OEM and ODM customization—including logo printing, packaging design, and product color selection. Standard model MOQ begins at 100 units with 7–15 day lead times. OEM orders start at 500 units with 20–35 day production cycles. Sample units are available within 3–7 days for fitting trials and technical evaluation. A 1–2 year warranty, free spare parts support, and dedicated technical after-sales service ensure operational continuity for partners managing large-scale deployments serving users with severe hearing loss. Wholesale pricing tiers and certified documentation packages—including FDA registration records and ISO 13485 certificates—are available upon request to qualified B2B partners.