High-speed sensing design Pen PE330 The pen of GT-191 is PE330 which is easy to use and comfortable to work with.GT-191 adopts high-speed trajectory sensing technology, which can quickly and sensitively... More
High-speed sensing design Pen PE330 The pen of GT-191 is PE330 which is easy to use and comfortable to work with.GT-191 adopts high-speed trajectory sensing technology, which can quickly and sensitively... More