Specifications: Working Principle: Electromagnetic induction Diagonal (inch): 88 Net Weight (kg): 16 Size (cm): 174*127*24 Resolution: 8192*8192 Face of whiteboard: Adopting the advanced waterproof and anti-abrasion board materials with a high definition displaying facility. You can use the general cleanser or alcohol to clean the whiteboard. Attachment: 2 digital pens Interface: USB/RS232/wireless transmission Precision: 0.05mm Transfer rate of datas: 19200 baud rate Power supply model: USB power supply without any external power supply Required hardware: General PC or laptops Advantages: 1. Environment friendly, neither pollution nor radiation, high-precise .NH-BOARD is more stable and reliable with characters of swift reflection and high resolution, thereby your writing is smooth, fluent and clear. 2. Convenient to install and adjustable at any angle with the options of wall-mounted, slide style, mobile and height adjustable style etc. 3. Powerful software with multi functions to choose, such as the changeable color and the size of the pen and can be upgraded freely. 4. Different sizes of types to choose and the customized model is available.