Description
GM-321 (3U3-2) Digital Hearing Aid for B2B Projects
GM-321 (3U3-2) is a rechargeable digital hearing aid with a 32-channel DSP configuration, Bluetooth connectivity, GM-hearing APP control, three listening modes, and a digital charging case. Supplied product materials also show an integrated drying compartment in the charging case. The model is intended for distributors, hearing-care businesses, importers, and private-label brands evaluating B2B wholesale, OEM, and ODM programs.
Product classification, APP compatibility, Bluetooth behavior, acoustic performance, battery data, documentation, certification scope, MOQ, customization, and lead time are supplied according to the final production configuration and target-market requirements.
Product Overview
The GM-321 (3U3-2) combines rechargeable operation, digital sound processing, Bluetooth-enabled functions, mobile APP control, and a charging case with a digital display. The supplied images show hearing-aid controls, APP-based volume and mode adjustment, and three listening modes for Smart, Outdoor, and Meeting scenarios.
The product images also show a drying compartment inside the charging case. This page describes the visible product configuration only. The drying method, operating conditions, safety information, and applicable claims are governed by the approved product documentation.
Key Configuration Highlights
- Rechargeable digital hearing aid configuration
- 32-channel DSP configuration shown in supplied product materials
- Bluetooth connectivity and call/music functions shown in supplied product materials
- GM-hearing APP interface for volume, mode, and sound adjustment shown in supplied materials
- Smart, Outdoor, and Meeting listening modes shown in supplied materials
- Charging case with digital battery display
- Integrated drying compartment shown in the charging case images
- OEM, ODM, private-label, and wholesale project evaluation
Technical Configuration for Final Confirmation
| Item | Information | Product information |
|---|---|---|
| Model | GM-321 (3U3-2) | Model identifier shown in supplied materials |
| Product classification | RIC appears in supplied product images; BTE appears in a referenced listing attribute | Classification varies between supplied materials; ask Goodmi for the applicable model documentation |
| Digital processing | 32-channel DSP configuration | Configuration shown in supplied product materials |
| Independent tuning | 32 independent bands shown in supplied images | Band and channel relationship is subject to the final product documentation |
| Connectivity | Bluetooth functions and GM-hearing APP control shown in supplied materials | Compatibility and available functions vary by final APP and device configuration |
| Listening modes | Smart, Outdoor, and Meeting modes shown in supplied materials | Mode behavior follows the final firmware and user guide |
| Charging case | Digital display and drying compartment shown in supplied materials | Drying method, operating conditions, and safety information follow the approved documentation |
| Acoustic values | Values are shown in supplied product images | Applicable values are provided with the final product documentation |
| Battery values | Runtime, capacity, recharge cycles, and charging time are shown in supplied images | Applicable values depend on the final test conditions and product version |
| Certifications | Certification marks are shown in supplied materials | Applicable certificates and market documents depend on the model and target market |
The above information is based on supplied product materials. The applicable GM-321 (3U3-2) specification, labeling, APP documentation, test reports, certification scope, commercial terms, and target-market requirements are provided with the final project documentation.
Bluetooth Connectivity and APP-Based Adjustment
The supplied product materials show Bluetooth connectivity and a GM-hearing APP interface. The interface includes device connection, left and right device status, volume adjustment, mode selection, and sound-setting options. Supported mobile operating systems, Bluetooth profiles, connection behavior, language options, privacy requirements, and the APP version are provided according to the applicable configuration.
The APP is presented here as a tool for device connection, volume, mode, and sound adjustment. Product suitability and fitting should follow the applicable user guidance and professional requirements in the target market.
32-Channel DSP Configuration
The supplied images present a 32-channel DSP configuration and independent-band adjustment concept for detailed sound processing. The relationship between channels, bands, frequency compensation, and available APP settings is defined by the final product documentation. Documented algorithm settings and performance information are provided with the applicable model documentation.
Charging Case and Drying Compartment
The charging case is shown with a digital battery display and an internal drying compartment. This configuration is presented as a feature shown in the supplied materials. The drying method, operating instructions, compatible power conditions, safety information, and permitted moisture-related claims follow the approved product documentation.
Listening Modes
The supplied images show three listening modes: Smart, Outdoor, and Meeting. The behavior of each mode and the conditions under which it is recommended are defined by the final firmware and user guide.
- Smart mode: The final configuration’s approved adaptive or balanced behavior.
- Outdoor mode: The final configuration’s approved environmental-sound processing behavior.
- Meeting mode: The final configuration’s approved conversation or voice-focus behavior.
OEM, ODM, and Private-Label Support
Goodmi can review GM-321 (3U3-2) projects involving product branding, appearance, colors, packaging, accessories, user manuals, approved parameter configurations, APP interface requirements, firmware settings, and other project-specific requirements. The final customization scope, MOQ, artwork requirements, development fees, testing, documentation, software support, and lead time are confirmed during project evaluation.
Sample Evaluation and Bulk Project Process
- Share your target country or region, customer type, estimated quantity, product classification requirements, APP and Bluetooth requirements, and branding plan.
- Confirm the standard GM-321 (3U3-2) configuration, final product classification, APP compatibility, charging case behavior, and available customization scope.
- Review the sample, user interface, Bluetooth functions, charging case, drying compartment, user guide, labels, and permitted product claims.
- Approve the final sample, APP release, written specification, labeling, and applicable documents before bulk production.
- Confirm inspection, packaging, shipping, warranty, software support, and after-sales procedures in writing.
Request GM-321 (3U3-2) Project Information
Tell us your target market, estimated order quantity, required Bluetooth and APP functions, product classification, branding requirements, packaging needs, documentation expectations, sample requirements, and desired delivery schedule. Goodmi can then review the applicable GM-321 (3U3-2) configuration, samples, customization scope, MOQ, and quotation process.
Important: Product suitability, fitting, APP functions, Bluetooth compatibility, labeling, certification, drying-function claims, and marketing statements follow the applicable requirements in the target market. Product images and performance values follow the applicable model documentation and target-market requirements.





























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