Description: 【Portable】:37 Key Roll Up Piano, has a good hand feel and a more realistic touch, which can better strengthen the hand feel and fingering practice. 【Easy to Carry】: Kids hand roll piano can be rolled up, small and light, and can also be carried when traveling, easy to store and use. 【Feature】: The Roll Up Keyboard Piano, The sound quality of the electronic piano is clear and truly restores the piano tone, giving you a professional playing experience. 【Designed for】:Portable roll up piano is a portable electronic piano designed for beginners and music lovers. 【Material】: Electronic Hand Roll Piano is made of silicone material, good durability to meet your long term use. Specification: Material:Silicone Power supply:USB or 4 AAA batteries (not included) Size Chart: Keyboard: 560mmx120mm/22.05inchx4.72inch control box:14.5cm/5.71inch Package Includes: 1 set 37 Key Roll Up Piano Note: Color might be slightly different due to the color calibration of each individual monitors. Please allow slightly measuring deviation due to manual measurement.