... , 10 Demo Songs,100 tone colors,100 rhythm 61 keys roll up piano : Standard 61 Simulation Keys,Sustain function, Vibration function, 10 ... , 16-stage volume adjustable,32-stage tempo speed, 61 keys roll up piano1.pucker function of electronic keyboard2.External phone output3 ... .100% waterproofN.W.:1160gDimension: keyboard 910x170x6mm console 130x235x30mm 61 keys roll up silicone piano