Energy saving and environmentally friendly Easy-to-use and wear-resistant ABS pen, no charging and charging cables required. No bright screen, no electromagnetic radiation, no eye damage. Multi-function Erase entire page with one button, quickly and easily. A lock key could protect the important message / design from accidental removal. In lock mode, you can press the erase button to partially erase the board with the rubber side of the pen. Without lock mode, the entire control panel is erased. The tablet's card slot is convenient for storage and can be used as is. It doesn't take long to find it. Convenient Unit weight 0.14kg, convenient and portable, good choice of gifts for children (over 3 years old), students, designers, businessmen, teachers, painters, etc. This writing board can stimulate your child's interest in learning, counting and reciting words and encourage parent-child interaction. Long battery life Button compatible battery, power saving design, paperless. Scope of delivery and warranty 1 x LCD writing board, 1 x pen