Swingline Optima 45 Electric Stapler, 45 Sheet Capacity, Silver (48209) JAM-FREE OPTIMA ELECTRIC STAPLER  Fast and quiet, this electric stapler allows for frequent stapling without noisy disruptions. Jam Free guarantee means fast functionality without interruptions. POWERED FOR MOBILITY  Offers the flexibility of plug-in or battery operated automatic stapling. AC adapter included. Four AA batteries not included. Not compatible with rechargeable batteries. SECURES 45 SHEETS  Fastens up to 45 sheets when used with Swingline S.F. 4 Optima Premium Staples. ACCURATE STAPLE PLACEMENT  Staple alignment LED lights ensure precise placement every time. Low staple warning lets you know when it's time to refill. MANUAL OR AUTOMATIC OPERATION  Changes easily between manual and automatic settings, allowing you to choose the option that suits the task at hand. VALUE PACK  Sturdy stapler comes in a convenient value pack, with staples and a staple remover included. BUILT TO LAST  Swingline stands behind this high-quality stapler with a limited 5-year warranty and a 100% Performance Guarantee.