A number of existing mice deploy the reading sensor at the centre of the chassis. However, the location of this mouse’s sensor is at the tip just as if you were grasping a pen. The concept of this model is “Sense of using a pen” which is a feeling most people are used to. Employing a high precision 1600 dpi sensor enhances the operating accuracy and a 27 mm big wheel extends the scrolling distance at maximum. Moreover, the basic performance is polished up thoroughly, by installing several spindles in order to achieve the ideal weight balance for which the mouse fits comfortably in one’s hand. Wired and wireless format is available.