Compact design lets you take reliable automatic stapling wherever you need it. Intuitive user control puts you in charge of either automatic or manually activated stapling. Includes stack height gauge and staple placement guides. Sleek, sturdy design with a 100% performance guarantee. Powered by an AC adapter (included) or 4 AA batteries (sold separately). Stapler Type: Electric; Staple Capacity: N/A; Size of Staple Used: N/A; Type of Staple Used: Standard.