1.touch 2.4G Wireless Mouse                  
2.Dimension:102×62×26mm                   
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