About this item

• Optical, USB 2.0 (compatible with USB 1.1) mouse
• Touch-sensitive technology concealed under the seamless top shell; you get the programmability of a four-button mouse in a single-button design.
• Force-sensing side buttons
• Revolutionary 360 degree Scroll Ball lets you move anywhere inside a document, without lifting a finger.
• Compatible with Mac OS X (programmability requires Mac OS X v10.4.2 Tiger or later), or Windows 2000 or Windows XP