ScreenBeam Classroom Commander - license - up to 28 simultaneous connections, 1 teacher PC, 27 student PCs

ScreenBeam Classroom Commander delivers classroom orchestration and wireless display for up to 50 Windows 10 student devices, without taxing your network or setting up servers. Teachers are untethered from the classroom display to move freely and interact with students without interrupting instruction. Constructive feedback is made easy with support of Windows Ink and touch displays.