Apple Wireless Bluetooth Mighty Mouse MB111LL/A Grade (B)

Power Source: AA Battery (included)Scroll Ball: 360-degree Scroll Ball with adjustable scrollingButtons: Up to four programmable buttons: full-body button with touch-sensitive technology beneath for left-, right- and Scroll Ball clicking. Force-sensing side buttons.Tracking: Laser Bluetooth technology, ultimate portabilityWith its secure, reliable Bluetooth technology, wireless Mighty Mouse goes wherever you do. Pair it with any Bluetooth-enabled Mac to work untethered and uncluttered at your desk or on the go, and it operates with either one or two AA batteries - no bulky dock required.Laser tracking engineThe wireless Mighty Mouse features a laser tracking engine that's up to 20 times more sensitive to surface details than traditional optical technology. That means it can track with precision on more surfaces than ever - even smooth or polished surfaces - with no mouse pad required.Innovative Scroll Ball and buttonPerfectly positioned to roll smoothly under just one finger, Mig