Logitech V270 Cordless Optical Mouse for Bluetooth - Bright Silver Main Specifications - NOTE: THIS PRODUCT CANNOT BE SHIPPED TO MASSACHUSETTS OR DISTRICT OF COLUMBIA (WASHINGTON, D.C.) Product Description Logitech V270 Cordless Optical Notebook Mouse for Bluetooth - mouse Device Type Mouse Connectivity Technology Wireless - Bluetooth Movement Detection Technology Optical Movement Resolution 1000 dpi Features Scrolling wheel Battery 2 x AA type OS Required Microsoft Windows 2000, Microsoft Windows XP, Apple MacOS X 10.2.8 or later