CK0294B Features 2.4GHz wireless keyboard and mouse set Simple and easy to use High resolution up to 800dpi/1600dpi 10 meter wireless range and freely 360 degree use Low power consumption Ultra thin design General Specs Color Black Type Wireless keyboard and mouse set Mouse DPI 800-2000dpi Wireless range 10m， 360° Cable Interface USB Compatibility Desktop and laptop System Required Windows98/ME/2000/XP/VISTA