True Interactivity for Bringing People TogetherWith differentiated cutting-edge touch technology, the TR3BF Series supports multi-touch & writing functions providing accurate drawing and authentic touch quality. In addition, the Air Class and web browsers support multi-directional communication and interactive learning, which will help you achieve the successful business.Key Features Brightnessw/Protection Glass 350 cd/m Touch Type IR Multi Touch Point Max 20 Points / Max 10 Writing Interfaces HDMI 3, RGB / Audio In,RS232C In, RJ45,USB 2.0 3, Front 2ea, Bottom side 1ea Only for software update, USB 3.0 3, Touch OutUSB2.0,B Type 2,HDMI 1, Optical Output / Audio OutMulti Touch & WritingThe TR3BF Series can simultaneously use up to 20 points of multitouch and 10 points of writing, as well as 2 types of stylus pens. This function offers a lifelike board writing experience and makes collaboration much easier.Palm erasingThe TR3BF Series allows you to easily erase texts, pictures, etc, written on the screen by using your own hands. This is not only easier than erasing with the stylus, but also makes you feel more natural, like youre erasing a real whiteboard.Air ClassAir 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.Screen SharingThe TR3BF Series allows you to share screens and content with laptops and other mobile devices. This makes meetings and classes as efficient and immersive as possible.Built-in OPS kitThe TR3BF 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.Web browserThe TR3BF Series supports the web browser in the Android OS, so you can search the web easily and quickly, without connecting to an external desktop.All-in oneThe TR3BF Series integrates both Android and Note Apps into a high performance SoC, without a PC.Various size with Ultra HDThe UHD resolution will show you details at a resolution that is four times higher than FHD, even when zoomed in. Various documents, images, and videos can be displayed without any distortion of the image which is especially important in an educational and collaborating environment.True Color, Immersive ViewThe TR3BF Series shows multimedia content to the attendees more vividly. The IPS panel clearly displays content at various angles, regardless of where attendees are sitting. Each pixel of the IPS panel reproduces the actual color of the image without any distortion.