LG 55” TR3BG series can simultaneously use up to 20 points of multi touch. This function offers a lifelike board writing experience and makes collaboration much easier. With the newly upgraded ScreenShare Pro, which enables to show a maximum of six shared screens or a file on a screen in real-time, it has enhanced usability by allowing users to share Chromecast mirroring on the same network without any application. Air Class supports connecting up to 30 students and offers interactive meetings for all mobile devices on the same network, providing a variety of tools such as voting, answering, and sharing project texts. By activating DPM function, the display can be set to be on only when there is an input signal, which enables more efficient power management. The TR3BG series supports the web browser in the Android OS, so you can search the web easily and quickly, without connecting to an external desktop. The TR3BG series integrates both Android OS and Free apps into a high performance SoC, without a PC. The TR3BG series supports OPS slots, allowing you to easily and conveniently mount OPS desktop at the back of the digital board without the hassle of connecting to an external desktop, offering you more expanded functions.