Description: Functions: function of PC Mice + Adjustable 800/1200/1600DPI + Capacitive stylus touch pen + One key to Web Browsing. 2.4G wirelss connected, mini receiver,up to 10m operation distance, it is very convenient to carry. The mini portable pen mouse can be used on the PPT when you are having a teaching meeting, business meeting, working PPT speech or other occasions. Handheld pen mouse, easily moving on the table,Wheel design, for page up and page down. This pen mouse can sliding on the mouse pad and desktop like a pen. Easy to use, supports plug and play. Specification: Tracing system: optical Operation frequency: 2.4GHz Operation distance: up to 10 meters, Resolution adjustable: 800/1200/1600 DPI System requirement: Windows 2000/XP/Vista/7, Linux, Mac OS, Android OS (with standard USB interface) Battery type: 1 XAAA Battery (not included package ) Material:Plastic Size:140x20x15mm/5.51x0.79x0.59inch Package Includes: 1PiecexPen Mouse