2.4G Wireless mouse • Radio Frequency 2.4G technology • Freely 360 degrees use with 10 meters operating distance • Auto powers save and sleep function • High resolution: 800dpi/1600dpi • NANO receiver inside mouse • Power: 2 AAA bateries • Customerized colors available System Requirement: • Windows 98/2000/XP/ME/Vista Packing: • Blister card, color box or white box Certificates: • CE, FCC,ROHS