Surface 2 comes with Microsoft Office 2013 RT. Some functionality may be limited. See Office.com/OfficeRT. Comes with Office Home and Student 2013 RT and Outlook 2013 RT. Some features and programs unsupported. See http://office.com/officeRT. Surface Covers are sold separately. Adapter may be required; sold separately. Xbox Music account required. Data charges may apply. Limits on free streaming apply. Available Xbox Music features and content may vary over time. See xbox.com/music. Testing consisted of full battery discharge during video playback. All settings were default except: Wi-Fi was associated with a network and Auto-Brightness disabled. Battery life varies significantly with settings, usage, and other factors. System software uses significant storage space. Available storage is subject to change based on system software updates and apps usage. 1 GB = 1 billion bytes. See Surface.com/Storage for more details. Testing consisted of full battery discharge while Internet browsing over Wi-Fi. Internet browsing was tested browsing 25 popular webpages. All settings were default except: Wi-Fi was associated with a network, auto-brightness disabled, and Bluetooth radio was turned off. Battery life varies with settings, usage, and other factors. All accessories are sold separately.