Compact, portable handheld electric stapler is easy to use.Precision adjustment guide for accurate staple placement.QuickLoad for faster staple refills with the push of a button.Features a convenient dual power option to run on an AC adapter or 6 AA batteries (not included; not compatible with rechargeable batteries).Staples up to 20 sheets at a time. For best results, use Swingline S.F. 4 staples.