Providing protection, comfort, and convenience in one simple solution,nFeatures a notebook sleeve to safely transport your notebook in any briefcase, bag, or backpack.nProviding protection, comfort, and convenience in one simple solution, the Logitech 15.4" Notebook Sleeve u0026 Mouse features a notebook sleeve to safely transport your notebook in any briefcase, bag, or backpack. Wireless mouse 15-month battery life Logitech Unifying receiver Advanced 2.4 GHz wireless technology 3 buttons Laser tracking 1000 dpi sensitivity USB connectivity Works with Windows XP/Vista/7 In the box - Wireless mouse Logitech Unifying receiver 2 AA batteries Carrying pouch User documentation System Requirements - Windows XP/Vista/7 or Macintosh OS X 10.3.9 or later Available USB port Internet connection for software download Manufacturer's 3-year limited hardware warranty