PC-PEN provides a powerful function (in Vista System)for handwriting and drawing. A PC-PEN has not only replaced the functions of mouse, but also can be used to chat, send E-mails, handwrite, draw pictures on the table and etc. —— At present, optical mouse has been become a mainstream of the mouse market, but most optical mice still adopts traditional mouse shaping. It is not flexible enough when use it. “Mouse hand” is very popular among computer users because it can easily arouse the hands and shoulders strain. Shenzhen PC-PEN Co. Ltd. according to the shortcomings of traditional mouse, keyboard and pen as well as other input tools, seeking humanizing computer operating new mode and caring the health of users, the company spent a large amount cost developing this cross-times handwriting laser PC-PEN which creates a new world in handwriting field.