PushShare Receiving Unit. The PushShare Receiving Unit was designed for easy integration with existing hardware. Just connect via HDMI (or VGA and 3.5mm audio) to legacy equipment and experience the full power of PushShare. touch screen. If you are using an interactive presentation screen you can connect the Receiving Unit via HDMI and USB then connect the PushShare dongle to your device and control your device from your interactive presentation screen, providing two way interactivity. This is ideal when using PushShare to interact with a presentation on your laptop.