| Type | Manufacturer |
|---|---|
| Site web | https://www.toptrons.com/ |
| Adresse | Haizhu District of Guangzhou City, Newport Road, Building 1304 Room 350 D Lai Ying Cyberport |
Hong Kong Year Extension Electronics Group, was founded in 1998, after 10 years of steady and rapid development, its TOPTRON (Year Extension) brand since its inception has been committed to digital conferencing systems, central control system, wireless touch screen, IPAD in the control, IPAD in the control system, IPAD exhibition systems, matrix switchers, and other large-screen display R & D, production, marketing, engineering design and installation.