... excellent quality. Detailed Product DescriptionFeatures:New generation roll up piano, is designed in mini and compact size that is ... .128 tones and 100rhythms are available for product, including piano, saxophone, harp, guitar are available for selection. It ... Quarrying,Classroom,Restaurants.Product Specification.:49Keys Roll up Electronic Piano,Relevant Parameters 4 octave+1 key- pucker function of ...