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Fighting with the increasing pressure from society, people need a way to yell out their feelings and release pressure. These pressure will cause problem in people’s health, low working efficiency, influence family harmony. One way to release stress is shouting loudly. However, one can not scream suddenly in the office or dormitory. Stress-releasing bag is just born to give a solution. It is made of sound-proof material, allowing people to shout without bothering others. It also turns the energy in the sound into electricity and lights up the bag. The soft-light will help users to calm down.