Unobtrusive flexibility and quiet confidence from this reliable electric stapler. Motorized mechanism for extra-quiet long-term performance. Powered by an AC adapter or AA alkaline batteries - for go-anywhere versatility. Low battery indicator for in-the-know confidence in portable applications. One button release for easy front loading. Staples 2-15 sheets of 20 lb. paper with S.F. 4 Premium Staples. Features: Motorized mechanism for extra-quiet long-term performance, Powered by an AC adapter or 4 AA alkaline batteries - for go-anywhere versatility, Low battery indicator for in-the-know confidence in portable applications, One button release for easy front loading, Staples 2 - 15 sheets of 20 lb. paper with S.F. 4 Premium Staples (product number ACC-35450A sold separately).