About Us

1. Motives to establish a company

Tres International is a company established for health-care to pursue a healthy life.

In order to provide guidance to lead a healthy life, we are introducing related products along with many research and development.

In this regard, We've been paying attention to the retirement generation who spend time in the pool, because of the burden on the joints is very high as the elderly age group goes on, so that they can overcome it and become healthy.

While researching what might contribute to this market, we've received quite a lot of opinions wanting waterproof earphones, because existed earphones are not waterproof, that not able to enjoy with water sports.

We, Tres International, are able to develop waterproof speakers with Osculation Transducer Vibration Speaker technology. Therefore, we have developed a product and are presenting a prototype.

Tres International has about 30 years of experience in software technology, and is also independent in acoustic instruments.
Along with the experience in technology development, we also holds a number of patents in the field of Oscillator Vibration Speaker. We are a company that is trying to develop technologies in health-care and related fields.

2. Technology owned

Obtained 5 types of technology patents for oscillator vibration speaker (Korean patents)

These patents exist as speakers' own patents, but they have a wide variety of application departments. However we are not having enough power to keep funds for development, that there are a number of areas that are failing to implement full-fledged development .

Obtained Bluetooth and UWB RTLS-related communication skills.

Bluetooth communication technology and next-generation communication technology is essential for electrical and electronic products, especially mobile sound equipment.
In 2021, a new development product schedule was finalized due to the technology acquisition and partnership of RTLS among UWB communication technologies.
We've started developing technology.

3. Company Vision

Tres International is company fore health-care pursuing a healthy life.
We are planning to expand into the elderly or medical device sector.


First, Expansion of the business of medical devices in hearing aids and related fields.
Second, Expansion of mobile sound equipment and related business areas (including disaster safety systems)
Third, Way to expand the IoT-related software industry

Our Product

The initial design of this waterproof earphone was for usage in the pool for the elderly in the United States.
Because disabled soldiers in US are also rehabilitating in swimming pools, so we can be supply to these soldiers.
Moreover, it was also found that the market for water sports and leisure sports are very large in the rear industry, that we developed the technology looking for ways to target.

Although there is a marine sports and sports market existed, this technology- based developed waterproof earphone is intended for its original purpose : healthy life and leisure for the elderly.

For an access to water and marine sports market, we will make the new design application and upgraded features on our waterproof earphone, in 2021.

Were you unable to use the Tres' waterproof earphones / mobile sound equipment because of the water contact environment?
Don't worry about using it anymore.

Contact Us

E-mail : nschoi@tresintl.com
TEL : +82-32-233-6119
FAX : +82-50-4169-0546