Bonsaii EverShred Pro 3S30 18-Sheet Cross-Cut Heavy Duty Shredder with 240 Minutes Running Time, 7.9 Gallons Pullout Wastebasket and 4 Casters, Black Continuous running time up to 240 minutes without stopping for mass documents destroying;Quiet operation :58 dB low noise level will give you a quiet and smooth shredding exprience. High-security and heavy duty cross-cut paper shredder with 18 sheets (A4 size 75g/m ) shredding capacity; Shreds paper into 5/32 by 1-19/50 inches (4mm x 35mm),Security level P-4. Shreds paper, credit card, CD/DVD, clips, staples, ultra-low noise to 58dB;Shredding speed reaches 5.9 feet per minute. Jam protection system with auto start and auto reverse to protect you from the frustration of paper jams, overheating and overloading protection technology to keep sustainable using the shredder and prolong its lifetime . 7.9 gallons large pull-out wastebasket capacity for easy and less frequent emptying, a 0.37 gallons separate small bin for CD/DVD and credit card pieces collection, and the transparent window makes it easy to see when wastebasket is full.