61 keys piano keyboard instrument Meterail:silicone,waterproof / foldable 100Tones 100 Rhythms 10 Demo CE,FCC,RoHS NW:1160g Standard 61 Simulation Keys,Sustain function, Vibration ... : keyboard 910x170x6mm console 130x235x30mmN.W.:1160g1.Automatic shutdown function 2.100% waterproof3.External DC input3.External phone output4.Pucker function of electronic keyboard