https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
Wireless Video / Audio Sender

Wireless Video / Audio Sender

PROTRONIC (FAR EAST) LTD.
Region: Hong Kong
Update: 04/04/2007
Key Specifications
- 300ft Open field transmission

- Send and receive crystal clear video and audio

- Connect to any TV using RCA/SCART connector

- Up to 4 channels connection

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions