Sign-language anchors have been getting ready for China's big Double 11 festival on November 11 to sell goods in a silent broadcast room. /VCG Photo

They speak in sign language for more than six hours every day so that deaf and mute people can watch goods selling live. /VCG Photo

Sign language broadcasts are more difficult than usual voice broadcasts. The anchor needs to practice several actions, recite numerous commodity information in sign language, all while trying on about 60 pieces of clothes, it's an impressive live show. /VCG Photo

November 11 has become a commercial phenomenon in China with huge discounts being offered both on- and offline. Over 213.5 billion yuan was made by Taobao sales last year. /VCG Photo