The electronic keyboard partner of Music Shell is Tianjin Yamaha Electronic Musical Instrument Co., Ltd. Tianjin Yamaha Electronic Musical Instrument Co., Ltd. is a company that designs, researches, develops, and produces digital electronic pianos by itself. The electronic keyboard with Music Shell cooperates with it. , children's special toy electronic piano, production of digital electronic piano, etc. Therefore, the electronic keyboard partner of Music Shell is Tianjin Yamaha Electronic Musical Instrument Co., Ltd.