1. Blister process.
The main principle is to flatten the plastic sheet hard to soften after heating, the use of vacuum adsorption on the mold surface, after cooling molding.

2. Sewing process
This process in the production of headset earmuffs, according to the specific shape, will use a number of auxiliary equipment, such as flat car, stacking and so on. The operation of the personnel requirements are higher, in order to achieve better results. Especially the complex shape of the treatment, some special angle can not be handled perfectly. In some ways, not as high-frequency process. General high-end headphones, the pursuit of perfection, and strive to better results, the general use of high-frequency technology.

3. Adhesive process
Adhesive ear cover also known as dehydration bonded ear. This process can be used both for the headset jacket can also be used for headset, the general treatment is the back of the headset. Especially where other processes can not. Such as holster and rubber parts or pvc material with the combination of parts (see below). And the process of using the glue is also a special glue, so as to ensure that the bonding part of the long-term use will not loose, from.

4. High frequency process
This process is also called voltage or hot pressing, need to use the mold. So the consistency of the product is high, the production of good products do not see car suture, like natural bonding together. Looks more than some of the high-end sewing process (as shown below, the headset material earphone material). However, the material loss is relatively large.