1.Smart Interactive Whiteboard. 2.Infrared technology. 3.30 Languages to Choice. 4.Finger touch. 5.Power by USB. Smart Interactive Whiteboard ... a net to orientation. No radiation, no need special pen, easy use and safety.Frame: aluminum, durable (8years) ... Gallery Free design,free write with different colors, different pen width, different pen styles. With spotlight, camera, amplify glass, mask, ...