Product information:

OFFICE 365 ENTERPRISE E3

User maximum Unlimited
Fully installed Office applications Word, Excel, PowerPoint, Outlook, Publisher, and OneNote on up to 5 PCs or Macs      Office on tablets and phones for the fully installed Office experience on up to 5 tablets and 5 phones                  Online versions of Office including Word, Excel and PowerPoint 
File storage and sharing with 1 TB storage per user
Business class email, calendar, and contacts with a 100 GB inbox per user 
Unlimited online meetings, IM, and audio, HD video, and web conferencing 
Intranet site for your teams with customizable security settings 
Corporate social network to help employees collaborate across departments and locations 
Work management tools to help teams create plans, organize, assign and collaborate around tasks