The medium-duty Stack-and-Shred shredder works automatically so you are free to do more with your day. Shredder also features a 4-digit programmable PIN code lock for walk-away shredding. Simply stack up to 250 sheets for automatic shredding, lock the lid and walk away. Manual bypass features VisiJam Protection for jam-free shredding up to 8 sheets on the spot. Security Level 3, cross-cut shredding cuts paper into confetti (3/16" x 1-1/2" pieces) at 10' per minute, turning a letter-size page into 377 pieces. Durable cutters also slice through paper clips and staples. Separate cutter inside cuts through CDs and credit cards. Whisper-quiet operation lets you work uninterrupted while it shreds up to 30 minutes at a time. Cross-cut shredder also features automatic jam clearance, self-cleaning cutters, energy-saving power-save mode with automatic wakeup, casters, 9" throat, 60 decibel range, manual reverse for jam clearance and 11-gallon pullout wastebasket with a viewing window.