pink/sky blue (partially wipe the specified color)

product advantages:

1. The handwriting board screen is not limited by the writing capacity (many products in the industry limit the writing capacity to 300g), and is cleaned at one time (many handwriting board on the market need to be cleared multiple times)

2. The mainboard uses the best driver chip, with low power consumption. After a long time of shipment inspection, the stability is extremely high (many handwriting board mainboards on the market cannot clear the screen when the battery power is slightly low, and the self-power consumption is high), the handwriting board screen matches the motherboard well.

3. Handwriting board products with fine handwriting, coarse handwriting and colored handwriting can be provided, and customers can choose at will.