Portable keyboard instrument for playing music, has two keyboards that are arranged on right hand and left hand and are played simultaneously

摘要

The portable keyboard instrument (1) has housing (2) and stoppable keys. Two keyboards (3a,3b) are arranged on right hand and left hand and are played simultaneously. The keyboards are bended at the front side of the housing. A curvature is provided on the back (10) of the housing. An electronic tone generator and a rechargeable speaker (9) are integrated into the housing.