Lista wynalazków

ZoP Keep Singing

autorzy: Liu Xinglengyue, Shi Yiling, Qi Mengyao, Deng Rong, Sun Xintong, Tao Siyu

Wearing this mask, you can sing to your heart's content, you can hear the accompaniment, but when you sing, only you can hear, the outside cannot hear, because the mask has the function of noise reduction. You can walk down the street and enjoy singing alone as much as you want.