Excellent condition. 2 AA batteries are not included Apple Part Number: M9269Z/A Product Details The Apple Wireless Mouse features a comfortable, easy-to-use ambidextrous design. The optical tracking engine provides responsive and accurate cursor movement on almost any type of surface. The Apple Wireless Mouse features an advanced power management system that automatically switches to low power modes during inactivity and can also be turned off when not in use such as during travel or weekends. System Requirements Mac OS X 10.4.9 or later Bluetooth-enabled Mac computer