... 4,OEM & ODM NEW COLORFUL CAR AUTO SHAPE HIGH-PRECISION USB OPTICAL MOUSECompatible With: Windows 2000, Me, XP, Vista, ... battery replacement.With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing.Intelligent connectivity, ... carrier: 2402-2480MHzRF operation channel: 16, auto frequency hoppingUSB: USB 2.0Operation systems: Windows 2000, Me, XP, Vista, Win 7 ...