Features: High quality material: It adopts high transparency acrylic panel, featuring strong toughness and long durability. Adjustable Brightness: There are three levels of brightness can be adjusted according to your drawing needs, convenient to use. Easy Carrying: Lightweight and thin, portable and compact size, this tracing board is very convenient for you to carry. Protecting Eyes: You can adjust the light to the most comfortable brightness, low energy consumption and effectively protecting you eyes. Widely Application: It is suitable for children drawing and writing, animation, professional artist or amateur. Specification: Condition: 100% Brand New Material: Acrylic + ABS Working Temperature: 0~40℃ Storage Temperature: -10~60℃ Power: 4W Number of Beads: 14 Color Temperature: 6500-7000K CRI: 80Ca Lm: 24-26 lum Membrane Treatment: Anti-glare Reflectivity: 25%-30% Input Voltage Current: 5V, 1A Transmission Pressure: 100~200g Battery (Lithium Manganese Battery): 3V (Battery Not Included) Battery Model: CR2016 Film Surface Hardness: 3H Writing Times: 100,000 Times Font Color: Green, Colorful Product Size: As shown in picture Package list: 1 * Tracing Board (Battery Not Included) 1 * Plastic Pen 1 * USB Cable Note: 1. The surface of the product can not be scratched with a pointed object, otherwise the liquid crystal film will be damaged. 2. The product needs to use 3.0V lithium manganese battery, and the same type of battery can be replaced after the electricity is used up.