What does the automatic key on the shredder mean?

Feros shredder-The world's strongest shredder "Feros" landed in China? 0? Nowadays, the products of "Fanluoshi" have become household names, such as shredders, binding machines, plastic packaging machines and file storage services. Especially, the shredder is known as "the strongest shredder in the world" because of the effective application, high quality and high performance of patented technologies such as 100% no paper jam and safe thermal function. Product description: 1. Anti-paper jam system prevents paper overload, solves error transmission failure and eliminates paper jam. 2.Auto-oil is equipped with automatic lubricating cutter to improve machine performance and prolong the life of shredder. 3.SafeSense patented technology will stop the shredder immediately when the hand is too close to the paper inlet. 4.Slishredded shredder can run quietly and is suitable for use in the workplace. 5. Number five. Microshred series can crush paper into 10X paper powder smaller than the standard particle size, providing a higher level of confidentiality protection. 6. 100% Paperless Shredder Find the strongest shredder in the world, all in Jin Dian World Mall!