Interactive Tablet • 4K display, and the resolution of the input signal is up to 3840 × 2160. • 20px ultra fine writing, and 1 mm writing in diameter recognizable. • Built-in Wi-Fi realizes wireless screen mirroring without any cable connection. • Built-in interactive whiteboard system allows annotating and sharing by scanning QR code. • Display looping out. • Various audio and video interfaces for device access. • Built-in network switch chip saves a network switch. • Built-in Android system supports kinds of applications. • Compatible with OPS/OPS-C devices, and built-in systems can seamlessly switch between each other. • Ultrathin aluminum profile frame design.