Step 1 – Requirements Discussion and Feasibility Assessment

We will begin by gaining a thorough understanding of your product concept and working with you to establish clear success criteria.

Key customization aspects include:

1. Core Functionality Customization: Active Noise Cancellation (ANC) or Passive Noise Cancellation, Single or Dual Earbuds, Number of Microphones, USB/Bluetooth/QD Interface, Durability Requirements

2.Appearance Design: Color, Materials (Plastic, Metal, Leather), Logo Processing (Screen Printing, Laser Engraving, Hot Stamping)

3.Audio Tuning Preferences: Voice Clarity, Bass Enhancement, Equalization

4.Packaging and Accessories: Color Box Design (Size, Color, Dimensions), Carrying Bag, Spare Earpads, Extension Cable

Boxin Output:

◆ Preliminary Technical Feasibility Analysis

◆ Cost Estimation

◆Development Timeline Suggestions

Importance:

This step helps identify technical and cost risks early on, ensuring the project starts on a feasible and controllable basis.

Step 2 – Solution Design and Specification Confirmation

Your ideas will be transformed into a clear and actionable technical blueprint.

Boxin’s main deliverables include:

3D renderings and CMF (Color, Material, Surface Finish) solutions

Confirmation of major chipset platforms (e.g., Qualcomm, Jerry)

Cavity structure and microphone pickup path design

Packaging design sketches and accessory list

Signing a confidentiality agreement with the client and confirming the solution.

Importance:

This stage ensures the client sees a clear design solution, avoiding subsequent rework.

Step 3 – Engineering Sample Production

Rapidly produce sample models to verify the core functionality and user experience of the product.

Sample production includes:

PCB design and PCBA assembly

CNC or 3D printing of mechanical parts

Acoustic tuning (frequency response, sensitivity, signal-to-noise ratio)

Functional testing (call quality, noise reduction, compatibility)

Surface finishing and logo processing

We typically provide 1-3 engineering samples, followed by 1-2 iterations of optimization based on your feedback.

Importance:

Engineering sample production is used for actual performance verification before entering the mold design stage.

Step 4 – Mold Development and Pilot Production

After customer confirmation of the engineering samples, we will prepare for mass production.

This stage includes:

2D drawing and DFM (Design for Manufacturability) review

Injection mold and metal mold development

T0/T1 mold trial molding for dimensional, assembly, and appearance verification

Final mold approval and mold finalization

Mold delivery cycle is typically 4-6 weeks, with weekly progress updates.

Importance:

Ensuring consistent and controllable quality throughout mass production.

Step 5 – Engineering Validation and Design Validation (EVT & DVT)

Engineering Validation Testing (EVT)

Small Batch Production (10-30 units)

Reliability Testing: Drop Test, High and Low Temperature Test, Insertion and Withdrawal Life Test, Aging Test

Functional and Performance Qualification

Design Validation Testing (DVT)

Pilot Production (200-500 units)

First Article Inspection (FAI) and Full-Line Validation

Submit Samples for Certification (CE, FCC, RoHS, etc.)

Final Engineering Change Confirmation and Mass Production Approval

Importance:

EVT and DVT can significantly reduce certification risks and quality issues before full-scale production.

tep 6 – Mass Production and Quality Control

After verification and approval, the project enters the stable mass production phase.

Our quality system includes:

Incoming Quality Control (IQC)

In-Process Quality Control (IPQC)

Outgoing Quality Control (OQC)

Acoustic and Microphone Performance Verification

Reliability and Aging Testing

All production is managed under an ISO-certified quality system to ensure batch-to-batch consistency.