Microsoft Wireless Mobile Mouse 4000 Graphite D5D-00001

Features: 2.4 GHz Reliable Wireless: Microsoft 2.4 GHz wireless delivers a reliable connection with up to a 30-foot range, with virtually no interference Plug-And-Go Nano Transceiver: Leave the Nano Transceiver plugged in when you’re on the go, or stow it in the mouse. Windows Flip in Windows 7: Easily switch between open windows with the click of a button. 4-way Scrolling: Scroll four ways for greater efficiency and comfort with Tilt Wheel Technology. 10-Month Battery Life: Use your mouse without power interruption for up to 10 months on a single battery. Battery status indicator tells you when battery power is low. 4 Customizable Buttons: Get quick access to the media, programs, and files you use most often with customizable buttons.   System Requirements: Windows 7 Windows Vista Windows XP (excluding Windows XP 64-bit) Mac OS X v10.4x–10.5x   Package Includes: Microsoft Wireless Mobile Mouse 4000 Microsoft Wireless Nano Receiver   Product Warranty: 30-day return policy for refund or replacement