Key Feature: Multi-touch, more free interaction. Up to 20 users can write simultaneously on the whiteboard without boundaries. Shape recognition, the multi-touch technology tracks touches intuitively and accurately. It recognizes touch size and the shape of pens, fingers, augmented reality tools and other solid objects. Smart design, easier maintenance: components can be directly assemble from board front for easier maintenance. Built-in small but smart and durable infrared senders and receivers guarantee the stability in use and low-cost in maintenance. No need for special pen. It is convenient to write and operate with your finger and any object at lower cost. Durable construction and surface. Brand-new aluminum wire frames with honeycomb aluminum backboard are rigid and durable; colored/ceramic steel panel is shockproof, writable and eco-friendly.