2.4GHz wireless optical mouse               
Free 360-degree use within 10m radius               
Automatically power-saving sleeping function                
Resolution: 800/1600 DPI adjustable             
Battery: 1*AA               
Rating current: 28ma                
Rating current: 1.5V                
Wireless operating channels: 32 Hop-channel             
Wireless carrier frequency:2402MHz-2481MHz              
Interface: USB micro receiver               
Mouse size: 100(L)X59(W)X25(H)mm                
Minimum system requirements:                
Windows 95/98SE/ME/2000/XP/7 or higher