Shanghai overflight marketing planning ltd. Is located in the new city of the song river in shanghai. It is a brand planner that brings together r & d, brand operations, market expansion and the like. It has a professional marketing and product development team. It is one of the domestic marketing planners with potential. The company has a forward-looking vision of the student goods industry and has developed a series of pianos for children in the music valley. To make the piano affordable for every parent, to make it affordable for every child and to realize the dream of music from an early age! The benefits of learning music for the child's development have been widely recognized by the educational community and child psychologists. The development of the child's mental capacity, the confluence of his or her brain, the pursuit of beauty and the improvement of his or her upbringing have yielded significant results. From a psychological point of view, learning musical instrument...