Video

Explore Alova through video — Learn about our factory, technology, and passion.

Explore Alova: Design, Manufacturing & Testing

Watch our company introduction and five process overviews directly on this page. Select a cover to play.

Alova — Company Introduction

Meet our team and explore open-ear health audio research, development and manufacturing.

How Open-Ear Headphones Are Made & Tested

Follow the manufacturing and quality-control workflow for open-ear headphones.

From Design to Production

See the development journey from product design and engineering to production.

How We Tune Bass, Vocals, and Balance in Open-Ear Audio

Explore acoustic tuning for bass, vocal clarity and a balanced listening experience.

What Earphones Go Through Before Mass Production

Explore the laboratory checks used to evaluate products before mass production.

Waterproof Open-Ear Headphones: Design to Test

See how waterproof design and reliability testing are assessed during development.

24 Quality-Control Stages

Explore the production workflow through process images and short explanations. Expand a group to see more.

Quality-control stages 1–6

Step 1: Incoming Material Inspection

Inspect incoming components before assembly.

Step 2: Dustproof Process

Review dust-control measures during production.

Step 3: SOP (Work Instructions)

Use work instructions to guide assembly tasks.

Step 4: Soldering Station Safety

Review handling and safety at soldering stations.

Step 5: Battery Power Testing

Check battery performance during quality control.

Step 6: UV Glue Application

Apply UV adhesive at the relevant assembly stage.

Quality-control stages 7–12

Step 7: Button Function Test

Check that product buttons function as intended.

Step 8: Pressure Holding Fixture

Use fixtures to maintain pressure during assembly.

Step 9: IP68 Product Coating & Potting

Review coating and potting on applicable IP68 models.

Step 10: Automatic Dispensing Machine

Apply adhesive with an automatic dispensing machine.

Step 11: Shielded Room Testing

Check product operation in a controlled shielded environment.

Step 12: Charging and Aging Test

Evaluate charging and performance during aging tests.

Quality-control stages 13–18

Step 13: Radio Frequency Test

Check radio-frequency performance.

Step 14: Electroacoustic Test

Evaluate electroacoustic performance.

Step 15: IP68 Product Airtightness Test

Check sealing on applicable IP68 models.

Step 16: IP68 Product Leak Point Analysis

Locate potential leakage points for analysis.

Step 17: IP68 Product Card Reading Test

Check memory-card reading on applicable models.

Step 18: Appearance Quality Inspection

Inspect the product’s visible finish and workmanship.

Quality-control stages 19–24

Step 19: First Batch Sample Verification

Verify samples from the first production batch.

Step 20: Automatic Film Laminating

Apply protective film during finishing.

Step 21: Full Box Weighing

Check packed-box weight.

Step 22: Full Carton Weighing

Check the weight of a completed shipping carton.

Step 23: Pre-Shipment Quality Assurance

Review finished goods before shipment.

Step 24: Dual-Arm Drop Tester

Evaluate packaging with a drop-test procedure.

Products, Events & OEM / ODM Guides

Explore product testing, customization and sourcing topics.

Trade Show

A look at Alova’s products and team at an industry trade show.

Real IP68 Waterproof Test

A closer look at a waterproof test for an IP68 headphone model.

OEM Made Easy

Explore the main stages of an OEM headphone project.

View more product and sourcing topics

Custom Open Ear Headphones: Full-Process Tracking

Explore project tracking from customization requirements through production.

Bone vs Air Conduction Headphones – Find the Best Fit for Your Brand

Compare air and bone conduction for your product positioning.

Import Certifications for Open-Ear Headphones | ALOVA Factory Support

Review certification planning for your product and target market.

IPX5 Bone vs Air Conduction

Compare IPX5-rated air and bone conduction product options.

Short Battery Life? Poor Testing Is the Real Problem

Explore battery testing and its role in product reliability.

Are All Headphones Really Tested Before Shipment?

A look at inspection checks before products are shipped.

How to Choose the Right IPX Waterproof Rating for Open-Ear Headphones

Review waterproof-rating choices for different use cases.

ALOVA IPX5 Bone Conduction Headset Comparison & Buyer's Guide

Compare bone conduction headset options for an OEM project.