We all use Reboard.
Instant teleconferencing. Supports wireless screen sharing. Annotations appear in real time on all remote screens. 4K display and built in microphone. Get involved like never before. Faster screen sharing. Click and share. No more wires. Farewell to cables. Up to four devices sharing and reverse control of laptops. High accuracy touch technology, input files and multimedias. to visualize your ideas. Access the whiteboarding via QR code. Meeting recording has never been so effortless.