Feature: 【Wireless Collaboration】The RoomCast receiver adopts HDMI interface, using WiFi transmission technology to accomplish the wireless one-tap productive collaboration. Yealink RoomCast Wireless HDMI Extender TV Studio Display 4K Transmitter and Receiver, 4-Screen Mirroring with Miracast GoogleCast Airplay WPP30, Wireless Presentation Digital Whiteboard Signage.
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