... new, high quality -Two-way high-speed 2.4G wireless mouse smooth and flexible-Works at distance of up to 10 ... -Compatible with Windows 98, ME, 2000, XP, VISTA, Windows 7 -Qualified with CE, FCC safety test Package Contents1 x Wireless Mouse 1 ... x Receiver Specifications:Wireless carrier frequency: 2402MHz - 2480MHz ...