Processus de fabrication des écouteurs
How Bluetooth Earbuds Move From an Approved Product to Mass Production
Tashells Audio est la marque de fabrication audio Bluetooth exploitée par Shenzhen iFree Electronics Ltd. Notre usine de production est située à Fenggang, Dongguan, Guangdong, ChinaShenzhen iFree Electronics Ltd. a été créée en 2014 avec un accent particulier sur le développement et la fabrication de produits audio Bluetooth.
For B2B customers, understanding how earbuds are manufactured helps make OEM/ODM projects more transparent. A reliable manufacturing process is not simply an assembly line. Product specifications, approved samples, components, production controls, functional checks, branding, packaging and final inspection all need to work together.
This page explains the manufacturing workflow we use as the practical framework for Tashells Audio Bluetooth audio projects. Exact production steps can vary by model, product structure and customization requirements.
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Earbuds Manufacturing Process at a Glance
Product Specification & Approved Sample
Production Planning
Component & Material Preparation
Incoming Material Verification
PCBA / Electronic Subassembly Preparation
Speaker, Microphone & Battery Integration
Earbud Assembly
Charging Case Assembly
Firmware & Functional Configuration
Functional Testing
Cosmetic & Assembly Inspection
Image de marque et emballage
Final Inspection
Carton Packing & Shipment Preparation
1. Product Specification & Approved Sample
Mass production should begin from a clearly confirmed product specification.
Before production, the project team confirms the applicable product model, functions, color, logo, packaging, accessories and other agreed requirements. For customized orders, the approved sample provides an important reference for production.
Depending on the product, the confirmed specification may include:
Bluetooth solution/version
Speaker configuration
Configuration du microphone
ANC/ENC functions
Configuration de la batterie
Charging method
Touch/button functions
Couleur du produit
Logo
Accessoires
Firmware functions where applicable
Packaging and labels
For the full customer-facing development workflow, see our .
2. Production Planning
After order requirements are confirmed, production is planned according to the product model, quantity, customization, components, packaging and required schedule.
Notre capacité de production établie nous permet de produire annuellement environ 2 000 000 pièces, avec une capacité mensuelle pouvant atteindre environ 200 000 pièces, en fonction de la gamme de produits et des exigences du projet.
Notre quantité minimale de commande (MOQ) habituelle pour les transactions B2B est de 1 000 pièces.
Pour en savoir plus, consultez notre site web .
3. Component & Material Preparation
Bluetooth earbuds contain multiple electronic and mechanical components. The exact BOM varies by model.
Typical components can include:
Bluetooth/audio chipset and PCBA
Speakers/drivers
Microphones
Piles et batteries
Charging contacts
Touch or button components
LEDs or displays where applicable
Boîtiers en plastique
Ear tips or wearing components
Charging-case components
Magnets
Cables and accessories
Matériaux d'emballage
For customized projects, materials also need to match the confirmed color, logo, packaging and other approved requirements.
4. Incoming Material Verification
Before components are used for production, applicable incoming materials should be checked against the order and product requirements.
The exact verification depends on the component and project. It can include appearance, model/specification, quantity and basic functional or dimensional requirements where applicable.
Quality management continues throughout production. See .
5. PCBA & Electronic Subassembly Preparation
The PCBA is the electronic core of a Bluetooth earbud.
Depending on the product platform, it connects and controls functions such as Bluetooth communication, audio processing, microphones, touch controls, charging and other electronic functions.
Electronic subassemblies are prepared according to the selected product solution before final product assembly.
For deeper OEM projects involving component or platform changes, technical feasibility is evaluated during the .
6. Speaker, Microphone & Battery Integration
Speakers, microphones and batteries are critical to the final user experience.
Depending on the product, assembly may involve:
Speaker/driver installation
Call microphone integration
ANC microphones where applicable
installation de la batterie
Charging contacts
Wiring or electronic connections
Acoustic components
ANC products may use multiple microphones and require a different acoustic/electronic configuration from basic TWS products.
Open-ear products also require a different structural and acoustic approach because the speaker is positioned outside the ear canal.
7. Earbud Assembly
The earbud housing and internal components are assembled according to the product structure.
Important considerations include correct component positioning, housing fit, left/right consistency, cosmetic appearance and the integrity of the assembled product.
Different products—such as in-ear TWS, ANC earbuds, ear-hook open-ear models and ear-clip products—require different assembly structures.
Explore our main product categories:
8. Charging Case Assembly
For TWS products, the charging case is another important part of the system.
Depending on the design, charging-case assembly can include:
Batterie
Charging PCBA
Charging contacts
Magnets
LED indicators or display
USB charging interface
Housing components
The earbuds and charging case need to work correctly as a complete system.
9. Firmware & Functional Configuration
Some product functions depend on the selected Bluetooth platform and firmware.
Depending on the project and supported platform, configuration can involve:
Nom de l'appareil Bluetooth
Touch-control logic
Audio/EQ settings
ANC/transparency functions
Low-latency mode
Messages vocaux
Other supported functions
Not every platform supports every type of customization. Firmware requirements should therefore be confirmed before mass production.
10. Functional Testing
After assembly, applicable product functions need to be checked.
Depending on the model, functional testing can cover:
Power on/off
appariement Bluetooth
Left/right connection
Lecture de musique
Fonctionnement du haut-parleur
Microphone operation
Commandes tactiles/à boutons
Chargement
LED/display functions
ANC where applicable
Transparency mode where applicable
Fonctions ENC/appel le cas échéant
Other product-specific functions
For a dedicated explanation of our testing framework, visit .
11. Cosmetic & Assembly Inspection
Product appearance matters, especially for private-label and retail orders.
Inspection can include:
Housing appearance
finition de surface
Assembly gaps
Product cleanliness
Color consistency against approved requirements
Apparence du logo
Charging-case appearance
The applicable criteria depend on the confirmed order requirements.
12. Branding & Packaging
After the product and branding requirements are confirmed, products can be prepared with the applicable private-label elements.
These may include:
Logo du produit
Logo du boîtier de charge
Étiquettes de produits
Custom box
Manuel d'utilisation
code-barres
Accessoires
marques d'expédition
Consultez notre for the packaging workflow.
13. Final Inspection
Before shipment, the finished order can be checked against the agreed product, branding, packaging and quantity requirements.
Les clients peuvent également faire appel à un tiers pour une inspection avant expédition, si nécessaire.
Voir .
14. Carton Packing & Shipment Preparation
Finished products are packed into shipping cartons according to the approved packaging arrangement.
The relevant shipment information is then coordinated according to the agreed trade terms and logistics arrangement.
For Bluetooth audio products containing lithium batteries, applicable transportation documentation and shipping requirements should be confirmed according to the product, destination and shipping method.
Manufacturing Process by Product Type
Écouteurs TWS
TWS production focuses on two earbuds plus the charging case as an integrated system. Pairing, left/right operation, charging and battery-related functions are important checks.
Écouteurs intra-auriculaires à réduction de bruit active
ANC products add microphones, noise-cancellation functions and additional acoustic/electronic requirements. ANC and transparency functions should be verified according to the product configuration.
Écouteurs intra-auriculaires ouverts
Open-ear products require different wearing structures and acoustic positioning. Assembly and evaluation should consider wearing stability, speaker position, comfort and sound leakage.
Earbuds Manufacturing Process FAQ
Where are Tashells Audio earbuds manufactured?
Notre usine de production est située à Fenggang, Dongguan, Guangdong, China.
Quel est votre MOQ habituel ?
Notre quantité minimale de commande (MOQ) habituelle pour les transactions B2B est de 1 000 pièces. Actual MOQ depends on the model and customization requirements.
Do all earbuds use exactly the same production process?
No. The workflow varies according to product structure, chipset, functions, ANC/ENC configuration, wearing style, customization and packaging.
Do you test products during manufacturing?
Applicable functional and quality checks are incorporated into the production and inspection process. Visit our et pages for more detail.
Can customers customize the product before mass production?
Yes, depending on the selected platform and project requirements. See .
Explore the Complete Tashells Audio Manufacturing System
— production location and manufacturing background
— products, capacity and customization capabilities
— product testing framework
— quality management from approval to shipment
— Flux de travail du projet client
— marque privée et personnalisation plus poussée
— Flux de travail d'emballage de marque