D6656 Active Directional AntennaJuly 27, 20181. Directional antenna D6656 is used with antenna distributor D6657 to increase receiving distance. Users could be used with 4 receivers simultaneously.view
Concept of Paperless Intelligent ConferencesMarch 20, 2023What is a paperless conference system?A paperless conference system is a system that uses modern communication technology, audio technology, video technology, and software technology to achieve a pape...view