1.2.4G Wireless Mouse                  
2.Dimension:109*75*38mm                     
3.Resolution :800DPI~1600 DPI exchangeable.                                   
4.No need code matching                              
5.Work with 2*AAA battery  Frequency:2.4-2.48                                
6.With mini receiver insider the mouse                                          
7.Compatible with Windows98/ME/2000/XP/VISTA