a4tech pinpoint optic wireless g10 usb multi mode series mouse (g10-730h) [並行輸入品] エイフォーテック specialized right handed design. 20m ultra far range. no cursor vibration 5-color tutorpen: draw colored lines to mark the objects. multi-link receiver allows to connects up to 5 sets of keyboards and mice. 5 selectable shortcut modes: office/tutorpen/screen capture/open files/gaming.