Usb Paper Shredder: A6 Paper Cutter With Letter Opener, Compact, And Receipts. Paper Shredder Letter Opener: The width of mini paper shredder inlet is 4.8"/12cm and the width of a torn paper is 0.12"/3mm which is suitable for A6 paper or folded A4 paper. The letter opener can help you tear the envelope easily. USB Battery Operated: The auto paper shredder can not only powered by USB cable, but also can work with 4 * AA batteries which can surely meet your demand for different occasions. Widely Usage: The USB paper shredder is designed for paper, bills, receipts,PP plastic etc, durable and eco-friendly. The mini paper shredder is a perfect choice to protect your information and privacy. Perfect Size: The USB mini paper shredder is only 15x10.5x14.5cm/5.9x4.1x5.7?(LxWxH), easy to carry and not much space needed. Full refund guarantee: If there is any physical damage or quality issue of our USB paper shredder, please feel free to contact us.Full refund will be issued once we have confirmed.