... up to 15M Low working current Size: 99.5*59*35 mm 2.4G Wireless mouseWith DPI changing button, 800dpi/1600dpi Operating ... up to 15M Low working current Size: 99.5*59*35 mmSuper blu-ray engine/high plane adaptability/efficient can save ... /1600dpiOperating distance up to 10MLow working currentSize: 99.5*59*35 mm2 AAA batteries includedCompatible with Windows98,2000, XP, ME, Vista ...