... Optical USB Mouse For Laptop PC 2.Compatible with: Windows 98, ME, 2000, XP, VISTA, Windows7 3.Interface 2.4G Wireless Optical USB Mouse For Laptop ... frequency conversion button Come with: receiver Energy: saving technology. Interface: USB Batteries: AAA X 2 (NOT included) Dimensions: 4(L) x ... ) x 1.4(H) inches Weight: 63g Colour: SliverCompatible with: Windows 98, ME, 2000, XP, VISTA ...