Features: The 8.5inch LCD writing tablet is a perfect replacement for paper and pen, it can be reused for thousand times. Pressure-sensitive writing surface, you can simply draw with fingernail; Sent with a stylus pen. Press to erase the written content, fast and convenient. The CR2016 battery can last for 2years and is replaceable. 4.5mm ultra-thin and lightweight: portable to carry; Deaf people can communicate easier. Can be used for class note, draft and memo pad, a great helper for children, student, business people, designer, engineers, teacher, etc.