Our passionate R&D team will design about 100 types of products per year for customers' reference.
Once customers confirm the final drawing, the engineer can start to do rendering with recommended materials and perfect finishing. This requires the engineer to have a correct understanding about the materials. If the materials and finishing are already confirmed, the rendering can be made quite fast.

For each kind of drivers, we will have a series of samples for customers to test and choose.
Concept Audio has our own core technologies for acoustic. We have got more than 30 patents mainly for driver technologies. The sound samples are manufactured with different sound tuning technologies. If customers cannot find suitable sound solutions from our current samples, we can tune new sound according to customers’ requirements right away, and also can develop new drivers if necessary.

After customers confirm the sound, our mechanical engineer will begin the internal structure design, and then start to make the first mock-up earphone samples for customers to test. This sample can be shown to users or distributors for the first test and good user experience. Updated samples will be made according to customers’ feedback.

When the mock-up sample is confirmed, we will start tooling. It usually takes about one month to make T0, T1, and T2 samples to work out a perfect mould. After finishing the tooling, we will produce a small quantity of about 30~50 sets for pre-production. These 30~50 sets of products are used to test the product’s performance, such as the measurements of sound, the reliability test, to make sure the products are perfect for mass production. Some modification will be done if needed.

We pay attention to every detail during mass production.
The main materials will be done 100% IQC to gain ensured quality for mass production. During the mass production of the earphones, we will perform 100% test & measurement for both semi-products and finished products. Before packaging, the main performance will be checked again.
One thing that should be mentioned is that the workers can only start to work after being trained for special skills.

Concept Audio especially focuses on the customers’ privacy when doing OEM/ODM business, and we promise that we will not show customers’ finished products.
To help customers understand our products, we will show some samples to customers, but only for customers’ reference.