publishing information, introducing products and promoting the application of high-tech projects in business and exhibition activities instead of ordinary whiteboard and projection screen. demonstration and annotation deepen the customer's recognition of the product. realize the integration of writing, saving and editing.
publishing information, introducing products and promoting the application of high-tech projects in business and exhibition activities instead of ordinary whiteboard and projection screen. demonstration and annotation deepen the customer's recognition of the product. realize the integration of writing, saving and editing.