It would be nice to use that TV or projection screen one already owns to make interactive presentations without running out to spend money on a whiteboard.
GoTouch is a small, portable device that instantly turns any TV or projector into an interactive whiteboard using an infrared tracking pointer. The device connects to smartphones, tablets or PCs via Bluetooth. If using an iPhone or iPad, it can be connected wirelessly using Apple TV’s AirPlay, or via a Lightning to HDMI cable. If using an Android device, GoTouch can be connected via a Micro-USB to HDMI cable or by using Chromecast or similar screencasting devices.