Features:Small and portable design， can be hand-carried， it can also be rolled up for easy storage in you hand bag or carrying case.The "soft keyboard piano" has many functions which you can select on the control box:128 tone functions128 rhythm options40 Demo songsmusic recording: Max. 336 Notes61-key piano with MIDI out jack and USB port to synchronize your computer.Built in speaker， also with speaker jack for connecting with external speaker.Volume adjustable.LED digital display.Specifications:Keyboard: 61 keysTone: 128Rhythm: 128Demonstration songs: 40Rated voltage: DC 6V or 4 * AA 1.5V batteries(not included)Material: SiliconItem size:Main body: 9.6 * 22.8 * 3.3cm/ 3.8 * 9.0 * 1.3in(L * W * D)Keyboard: 88 * 17.4 * 0.5cm/ 34.6 * 6.9 * 0.2in (L * W * D)Item weight: Approx. 830g/ 1.83LbsPackage size: 28 * 19.5 * 8.5cm/ 11.0 * 7.7 * 3.3inPackage weight: Approx. 1120g/ 2.466LbsPackage list:1 * 61keys Roll Up Piano1 * Power Adapter1 * User manual