Use liquid crystal electronic writing board instead of paper and pen
"XPAD" is a match with the LCD electronic tablet used APP
The main functions are as follows:
1: Draw your own work on the electronic tablet
2: Use "XPAD" photographed their own works
3: "XPAD" to identify the LCD electronic tablet for cutting
4: Through the "XPAD" black and white conversion function, the works into a sketch line drawing
5: You can save their own works, at any time to enjoy