Features:3D wireless ball mouse256 ID 27MHz and single channelPS2 or USB connector and 400DPI or 800DPI2 AAA batteries power consumptionCompatible with Windows 98/ME/2000/NT/XP
Features:3D wireless ball mouse256 ID 27MHz and single channelPS2 or USB connector and 400DPI or 800DPI2 AAA batteries power consumptionCompatible with Windows 98/ME/2000/NT/XP
Features:3D wireless ball mouse256 ID 27MHz and single channelPS2 or USB connector and 400DPI or 800DPI2 AAA batteries power consumptionCompatible with Windows 98/ME/2000/NT/XP