Yealink Sharing Box VCH51 is simple to use. deploy. and manage. It allows you to present your PC content to a Yealink video conferencing system. delivering a stable and clear presentation experience. Besides. when working with Yealink video conferencing system*. VCH51 enables you to enjoy the BYOD mode. You can select Yealink video conferencing system as the PC audio and video device to have a better conferencing experience.