... silicone 2, Eco-friendly 3,CE FCC 4, convenient your life 5, colorfull (1).ON/OFF : Press ... to switch on/off power.(2).PLAY: Combine with KNOCK ABOUT.(3).KNOCK ABOUTPress KNOCK ABOUT and ... Press STUDY to enter into study mode. The demo songs for corresponding six keys are: samba, march, mambo, disco ... drumx1,AC adapter x1,Drum Stick x1Inner Packing: 1pc/gift boxOuter Packing: 6 pcs/CTNCTN size: 67x 42 ...