Description: Voltage: 3V Material: ABS Power supply: button cell Colors: black size: 12cm * 3cm Features: One click Erase which can be done with a simple press of a button, and features a sealed internal battery that lasts for about 100,000 erases How to write can be used stylus pen, your finger or any non-marking, non-scratching instrument writing or drawing Free style painting Perfect for taking notes, making lists, sketching, playing games or anything you need written down. Suitable for all ages and occupations such as business men,artist,students,teachers ,children and kids,also can be used at home ,office or on the way to anyway Message Board Leave a message to your family and you can put it on the table,we also offer 1pc magnet which enables you to stick on the fridge. Amazing Gift Soft LCD screen ,no backlight ,protect your eyes, it is s great way to help build your child's awareness of environmental protection. Package list: 1 * LCD writing tablet 1 * Plastic stylus