Grastron’s wireless product series, dedicated to providing the simplest BYOD presentation, collaboration and video conferencing experience in working and learning spaces.With the influence of pandemic, contactless and hybrid working/learning already become the new normal of our daily life, Bring Your Own Device and Bring Your Own Meeting are the most accepted way for today’s working and learning environment, a wireless solution that’s ease of use and combines the capabilities of BYOD presentation, collaboration and soft-conferencing will win the market.

Topband takes intelligent control as the core technology and becomes a leading supplier in intelligent control solutions. Our products are mainly applied in household appliances, garden tools, power tools, robotics, industrial machines,medical instruments etc,.

Dedicated to providing the best solution for Pro-AV market, with a wide product line ranging from a simple signal extender, convertor to a digital matrix 144x144.