ITEM NAME:16 Music Box 16 Sound Box Electronic Production DIY Kits Description: The pad is enlarged and sprayed with tin, it is easy to solder, and the solder pad is not easy to fall off many times. It is not easy to bend and bend (refers to the bending caused by non-human.1 Piece 9561 Music IC. 1 Piece PCB board. 1 Piece Passive buzzer. 1 Piece CD4011. 1 Piece CD4066. 1 Piece 5P pin header. 1 Piece 8050 Transistor. 1 Piece 104 ceramic capacitor.