Special Note: The screen is default locked in order to save power. Please unlock it before first usage. Great Gift for Kids - It is good for writing, spelling, and drawing practice. Multi-use: Suitable for designers, professionals, teachers, students, and children. 1. Students can make notes, draft, use for math practice. 2. Leave messages for your family, put it on the desk or hang it on the wall. 3. A meaningful learning toy for your kids or toddlers to develop a good habit of drawing or writing that can last them many years. Also, it is an effective way to help establish children's awareness of environmental protection. Durable and replaceable battery: Built in durable battery, easy to replace, designed to be written and erased more than 100,000 times. Specification: Material: Eco-friendly ABS + Soft LCD Size: 8.5 inch Input voltage:3 V Frequency: 1HZ Battery: CR2020 button battery Package Included: 1 x LCD writing tablet 1 x writing stylus 1 x battery inside 1 x packing box Note:1.Normally one button clears everything but if it doesn't please change battery to clear. 2.Avoid getting the tablet wet. 3.Don't use sharp objects to touch surface. 4.Screen is difficult to see in dark room or strong sunlight. 5.The screen might got tiny scratches after long time using. 6.Writing tablet can't connect to computer or save images. 7.Avoid using when the temperature is higher than 40? (104?), or below 5? (41?).