Using zero-power flexible liquid crystal technology, the LCD panel has a built-in reflective layer, no additional power is needed to maintain its screen content, and the brighter the environment, the clearer the display effect. The thickness of the font or line can be solved by changing the strength of the writing. The greater the pressure, the thicker the traces, thus forming a sketch effect. After writing, if you don't need it, just press the button above, and the screen will be restored to a brand new one. status. Using the characteristics of bistable liquid crystals, it can record tracks when pressure is applied to the of the LCD screen. Driven by a certain voltage waveform, the bistable LCD screen returns to its initial state. Only a weak current is required when driving refresh, so as to achieve low power consumption of the product. Environmental protection is a new form of life at present, LCD handwriting board replaces traditional paper, which makes deforestation resources relatively alleviated. Suitable for all ages: This writing pad is completely used by children for writing, arithmetic, spelling and learning assistants. It is also the best writing pad for adults to take notes and memorize information in the office. In addition, it is also the best family message board for sending messages to family and friends. Most importantly, it is a high-quality learning toy suitable for children . colour:Brown Material:LED+ABS size:188 x 240 x 8mm Package Contents: 1 x Writing pen 1 x writing board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.