Multi Touch The TR3DJ series can simultaneously use up to 20 points of multi touch. This function offers a lifelike board touch experience and makes collaboration much easier. Enhanced Visibility with Low Parallax With 1mm gap between the screen and tempered glass which supports low parallax The TR3DJ series can offer precise touch and excellent writing experience. Dual Pen & Dual Color The stylus pen comes in two different colors and with two different tip sizes of 3mm and 8mm. The dual pens enable users to write or draw simultaneously. Air Class Air Class supports connecting up to 30 students and offers interactive meetings for mobile devices on the same network providing a variety of tools such as voting answering and sharing project texts. Air Class is easily accessible from the TR3DJs main toolbar. ScreenShare Pro ScreenShare Pro enables you to show up to six shared screens or a file on a screen in real-time and it has enhanced usability by allowing users to share Chromecast and Apple device mirroring on the same network without any additional application. Web Browser The TR3DJ series supports an embedded Android web browser so you can search the web easily and quickly without connecting to an external tablet or computer.