Stack up to 750 sheets in the auto feed tray for automatic shredding of letter- and legal-size sheets. The Swingline® Stack-and-Shred™ 750M is a micro-cut (Level P-5) shredder. The paper chamber locks during shredding, and can only be opened with a four-digit PIN. It will unlock automatically when shredding is complete. Power save mode engages after two minutes of inactivity. Additional features include Intelligent Auto+® Jam Clearance, which automatically reverses and re-feeds papers to clear jams and Intelligent Interactive Jam Clearance with LED lights that blink to guide users through clearing a more complicated jam manually. Intelligent SelfOil™ automatically lubricates and Intelligent Self-clean keeps cutters clear of paper shred build-up. The 750M shredder is continuous duty and has a manual feed slot for up to ten sheets. A credit card can be shredded by placing it between the auto feed rollers and shutting the lid. DVDs/CDs can be shredded through a separate slot in the auto feed tray.